Dedicated excise taxes finance only a small number of the many activities undertaken by the Federal Government. The fourteen trust funds and special funds currently financed by excise taxes can be grouped under four programmatic purposes: nature conservation and recreation, transportation, environmental cleanup, and health damage compensation. In close parallel, the products currently subject to taxation on behalf of trust and special funds can be classified under the categories of hunting and fishing equipment; cargo transport and air passenger transportation; motor fuels; and materials potentially hazardous to the environment or human health.

Congressional interest linking foreign aid more directly with commercial interests has grown in recent years as the U.S. budget becomes increasingly strained, constituent support for foreign aid dwindles, and U.S. industries seek Federal assistance. The Trade and Development Agency is one of several Government agencies involved in "aid for trade"--programs that combine development assistance and export promotion.

Japan has quickly risen to prominence as a donor of official development assistance (ODA), providing volumes of aid on par with the United States since the late 1980s. Originally a tool to bolster Japan's postwar economic recovery, Japanese aid has gradually assumed importance as a foreign policy tool. Faced with increased pressure from the international community to play a greater role in meeting global challenges and lacking the military and diplomatic resources of other nations, Japan has increasingly turned to its foreign aid as a source of world influence.