increasing. the federal government says that the gas tax does not generate enough money to build and maintain the nation's highways. there is no formal legislation yet. >> standing by for contact and capture. >> "endeavor" parked at the international space station for the final time today. the astronauts' main job, to anchor a physics experiment to the space station's exterior. the big bang, of course, one more shuttle mission is planned this summer before the fleet is retired. well, the powerful international finance man charged with attacking a new york hotel made is under pressure to resign. dominique strauss-kahn is held without bail on charges of rape and other charges. tim knee geithner and others say that strauss-kahn should step down as the head of the international monetary fund.