Secret Service Director Mark Sullivan said the scandal involving agents and prostitutes in Colombia was not part of a 'systemic issue.' But Sen. Susan Collins said it 'was almost certainly not an isolated incident.'
Those analyzing the cyberspies who are trying to infiltrate natural-gas pipeline companies have found similarities with an attack on a cybersecurity firm a year ago. At least one US government official has blamed China for that earlier attack.
A covert CIA operation in Yemen intercepted an 'undetectable' bomb intended to blow up an airplane. Authorities suspect it was the work of master bomb maker Ibrahim Hassan al-Asiri. Al-Asiri, who built the first underwear bomb.
Officials said the plot, timed to occur about a year after the death of Osama bin Laden, involved a more advanced version of the underwear bomb that failed to detonate on a plane over Detroit in December 2009.