House Democrats are still weighing their options about whether to participate in a special probe into the deadly 2012 attacks on the U.S. diplomatic facility in Benghazi, Libya, party leaders said Wednesday. Following a closed-door meeting of the Democratic Caucus Wednesday morning, the leaders said they're awaiting Speaker John Boehner's (R-Ohio) response to requested changes to the panel before they'll decide whether to participate. "We'll wait for a written response from the Speaker's office, and we in the leadership, in consultation with our members, will make a decision going forward as to how we'll deal with this," said Rep. Joe...