. >> woodruff: similar skepticism came from indiana senator richard lugar, the committee's ranking republican. >> despite ten years of investment and attempts to better understand the culture and the region's actors, we remain in a cycle that produces relative progress but fails to deliver a secure political or military resolution. in afghanistan, measuring success according to relative progress has very little meaning. >> woodruff: the doubts were fed by a report from the committee's democratic staff. after a two-year review, it concluded that: the report suggested, in fact, that u.s. aid is only encouraging afghan dependency and corruption. the renewed discussion over progress in afghanistan comes at the same time as the debate over how quickly to begin withdrawing 100,000 u.s. troops. the pullout is scheduled to begin next month, although president obama has not given any firm numbers. this past monday, on abc news, defense secretary robert gates warned against a "premature" move. >> what i have said is that it is important, as we did in iraq, to have a strategy behind the numbers, not to