I wouldn't get too excited about Byrd yet--there's a good chance he's just holding out for more pork.
OTOH, the rise of the Islamic militantcy, combined with the established worldwide network, may be working in our favor on this one. I've no doubt that some of these guys, along with some captains of industry, had plans to retire to some distant place away from the mess they're creating. Since Americans have now become targets everywhere, they need to maintain some safety at home if they want any hope of a pleasant retirement.