Citing a variety of vague misgivings he 'can't quite explain,' President Clinton vetoed Monday H.R. 1556, a bill that would have provided tax breaks to corporations that offer maternity-leave packages to female employees. 'I don't know, it's just sort of hard to put into words,' Clinton said following the veto. 'It's weird, but something about this bill just didn't seem right. I know I should be, but for some reason, I'm just not into it.' 