MORE SKY TERROR NEWS:

U.S. law enforcement sources tell ABC News the FBI is investigating new leads that involve a possible connection between people in the United States, in major east coast cities, and the London bomb plotters. . . .

With at least five, and maybe more, suspects still at large, it is the missing plotters who are the greatest security concern. Among those still at large are some of the suspected ringleaders of the London plot.

Congressman Peter King (R-NY), Chairman of the House Homeland Security Committee, told ABC News authorities are extremely concerned about the missing suspects. “They are on the loose,” said King. “These are desperate, vicious people, who have a good degree of sophistication. And they’re out there, if nothing else, they’re available for future operations. The more deadly threat is that there is a plan B that they would be able to implement.”

Intelligence officials tell ABC News the plot’s trail leads directly to al Qaeda and to the Pakistani city of Karachi, where money for the plot was wired to London.

Hard to know how much to make of this, but stay tuned.