by Andrea Shalal-Esa and Patricia Zengerle of Reuters
U.S. presidential candidates Barack Obama and John McCain differ on the size of the U.S. military, the Iraq war and how to deal with Iran, but they have similar views on the need to reform Pentagon procurement.
Both Obama, a Democratic senator from Illinois, and Republican rival McCain, an Arizona senator, have emphasized the need to rein in chronic cost overruns in Pentagon weapons programs, and curb funding for unneeded, outdated weapons systems, but their views diverge on specific programs.