WASHINGTON (AP) - Congress signaled its disapproval of Iranian President Mahmoud Ahmadinejad with a vote Tuesday to tighten sanctions against his government and a call to designate his army a terrorist group. The swift rebuke was a rare display of bipartisan cooperation in a Congress bitterly divided on the Iraq war. It reflected lawmakers' long-standing nervousness about Tehran's intentions in the region, particularly toward Israel—a sentiment fueled by the pro-Israeli lobby whose influence reaches across party lines in Congress. "Iran faces a choice between a very big carrot and a very sharp stick," said Rep. Tom Lantos, chairman of the...