A letter report issued by the Government Accountability Office with an abstract that begins "The Army considers modular force transformation its most extensive restructuring since World War II. The Army has estimated that restructuring units from a division-based force to a more agile and responsive modular brigade-based force will require a significant investment through fiscal year 2011. To facilitate this transformation, Public Law No. 109-163 Section 353 directs the Army to develop and implement a training strategy for the modular brigades. This law also directs GAO to report on the implementation of the strategy. This report discusses (1) the extent to which the Army's training strategy addresses the five elements specified in the public law and (2) the actions the Army has taken to implement its training strategy and the implementation challenges it faces. To address these objectives, GAO reviewed Army training strategy documentation and interviewed Army training personnel."

A letter report issued by the Government Accountability Office with an abstract that begins "Freight railroads account for over 40 percent (by weight) of the nation's freight on a privately owned network that was largely built almost 100 years ago and includes over 76,000 railroad bridges and over 800 tunnels. As requested, GAO provides information on this infrastructure, addressing (1) the information that is available on the condition of railroad bridges and tunnels and on their contribution to railroad congestion, (2) the federal role in overseeing railroad bridge and tunnel safety, (3) the current uses of public funds for railroad infrastructure investments, and (4) criteria and a framework for guiding any future federal role in freight infrastructure investments. GAO reviewed federal bridge safety guidelines and reports, conducted site visits, and interviewed federal, state, railroad, and other officials."