Tech companies still under cloud after NSA revelations

Revelations in the court records are damaging to technology companies, showing just how vulnerable they are to government demands, said American University law professor Stephen Vladeck. "Before this came out, we could only speculate about how much pressure the government was exerting on Yahoo, Facebook and Google behind the scenes. Now it's clear the lengths to which the US government has gone," Vladeck said. "And that's what's going to keep our friends overseas up at night."