After more than five years of allowing President Bush relatively free rein to set their course, Republicans in Congress are suddenly, if selectively, in rebellion, a mutiny all the more surprising since it centers on the party’s signature issue of national security. In a rebuke to the White House, House Republicans are moving aggressively to put the brakes on the takeover by a Dubai company of some port terminal operations in several large American cities, an effort that moved forward on Wednesday with broad bipartisan support. Full Story