CIA briefing to lawmakers on suspected energy attacks turned contentious

A briefing on suspected energy attacks on US intelligence officers turned contentious last week, two sources told CNN, as senators demanded more information about the mysterious incidents from the CIA and accountability for how the agency has handled them.A briefing on suspected energy attacks on US intelligence officers turned contentious last week, two sources told CNN, as senators demanded more information about the mysterious incidents from the CIA and accountability for how the agency has handled them.