WASHINGTON (AP) - If gay service members are allowed to serve openly, the military will face another tough question: Should gay partners be entitled to military benefits? Momentum appears to be building for ending the ban on gays in the military. New rules ordered Thursday by Defense Secretary Robert Gates make it harder to discharge men and women under the policy known as "don't ask, don't tell." His decision is intended as a stopgap measure as Congress weighs whether to go along with President Barack Obama's request to repeal the law. Since the draft ended in 1973, spousal benefits have...