Protesters hold signs while the image of the crowd is reflected in the windows of Dallas City Hall. They are against anti-immigration legislation being debated in the U. S. Congress.

A group of protesters in Dallas hold up sings against the anti- immigration measures which endanger undocumented immigrants.

Protesters hold up signs in front of Dallas City Hall. One sign reads, "Immigrants Help Build America."

Men, women, and children gather to show rejection of anti-immigration legislation before the U. S. Senate. Two signs read, "Immigrants Help Build America," and "NO HR4437."

Protesters wearing white shirts carry signs during a march against anti-immigration legislation.

Immigration protesters march and wave American flags as they pass Cathedral Santuario de Guadalupe (Cathedral Shrine of Our Lady of Guadalupe) in Dallas. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Immigration protesters wave American flags as they march past Cathedral Santuario de Guadalupe (Cathedral Shrine of Our Lady of Guadalupe) in Dallas. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Marchers, carrying signs, march past a sign for the Dallas Museum of Art Sculpture Garden.

Protesters march under a banner that reads, "Federacion de Clubes Michaocanos (?) en Texas, Dallas, Texas." The march was to protest anti-immigration legislation being debated in the U. S. Congress.

Immigration protesters waving signs (in English and Spanish) and American flags march past vendors and onlookers. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Immigration protesters march in downtown Dallas with American flags and protest signs. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Immigration protesters march in the April "Mega March" in downtown Dallas. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. Among those marching are Adelfa Callejo, a Dallas lawyer and civil rights activist who is a leader in the Hispanic community; Hector Flores, who has served as National President of the League of United Latin American Citizens (LULAC), Director of Recruitment and Retention for the Dallas Independent School District, and an Equal Opportunity Specialist for the Office of Civil Rights within the Department of Health, Education, and Welfare; and Domingo Garcia, a practicing attorney in Dallas who served as Mayor Pro Tem of Dallas, as a Dallas City Council member, and as a Texas legislator - he is the current General Counsel for the League of United Latin American Citizens (LULAC), a Latino civil rights organization. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

A camera man captures a Dallas Police officer providing crowd control at the April "Mega March" in downtown Dallas. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

A crowd of immigration protesters, including several children, wave American flags. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Protesters waved the Mexican flag and signs outside Dallas City Hall. They gathered to show rejection of anti-immigration legislation before the U. S. Senate.

A large group of immigration protesters wave signs and American flags in Dallas. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Immigration protesters gather at the April "Mega March" in Dallas holding protest signs and waving American flags. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Immigration protesters, along with a priest, march with signs and American flags. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. Among those marching are Adelfa Callejo, a Dallas lawyer and civil rights activist who is a leader in the Hispanic community; Hector Flores, who has served as National President of the League of United Latin American Citizens (LULAC), Director of Recruitment and Retention for the Dallas Independent School District, and an Equal Opportunity Specialist for the Office of Civil Rights within the Department of Health, Education, and Welfare; and Domingo Garcia, a practicing attorney in Dallas who served as Mayor Pro Tem of Dallas, as a Dallas City Council member, and as a Texas legislator - he is the current General Counsel for the League of United Latin American Citizens (LULAC), a Latino civil rights organization. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

Immigration protesters of varying ages wave signs and American flags outside the Cathedral Santuario de Guadalupe (Cathedral Shrine of Our Lady of Guadalupe) of Dallas. One young protester holds a sign that reads: "We are not terrorist (sic) We are workers." According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

A large crowd of immigration protesters wave signs and American flags at the beginning of the April Mega March in Dallas. According to the Dallas Police Department, at least 100,000 people marched in the most well-attended civil movement in the history of Dallas. The protesters demanded the legalization of Hispanic undocumented immigrants, estimated to be about twelve million in the United States. The so-called "mega march" was carried out to demand immigrant amnesty as members of the U.S. Congress debated immigration reform.

A sing is held up during a protest against anti-immigration legislation before the U. S. Congress.

A sign that reads, "Stop 4437, Sensenbrener No" is held up by a protester at a rally to reject anti-immigration legislation before the U. S. Congress.

Protesters hold signs up during a demonstration against anti-immigration legislation before the U. S. Congress. One sign reads, "Humans are not Illegal."

Protesters raise signs while demonstrating against anti-immigration legislation. One sign reads, in part, "We Mexicans are Not Immagrents [sic] We are on Our Home..."