I agree with you that Snowden has caused terrorists to shut down or restrict electronic and phone communications.
I don’t think Obama or ValJar would do it on purpose though because they would never deliberately make the little jerk look bad, not to mention that they supported al Qaeda and the Muslim Brotherhood in Syria, Egypt and Libya...
I talked to a friend tonight who worked in Naval Intelligence. He said that Snowden didn’t disclose one thing that was suprising to him and probably not much that was suprising to foreign intelligence agencies. But he also didn’t think it was likely that this was an elaberate ruse to disrupt terrorist communications.