A U.S. Army M1 Abrams tank rolls through the center of Tikrit, Iraq, north of Baghdad, in 2003. An Army proposal to stop work on the tank, a $3 billion savings, has been blocked by the members of four key congressional committees. Those lawmakers have received $5.3 million since 2001 from employees of the tank’s manufacturer, General Dynamics, and its political action committee.
Efrem Lukatsky/AP