Submission + - Encrypted traffic being intercepted
Here there are some references, unfortunately scant on the details that matter; actually it is not clear if it is broken algorithms, compromised protocols, MITM attacks or just plain old simple "enforced" cooperation by the providers.
http://www.theguardian.com/world/2013/sep/05/nsa-gchq-encryption-codes-security
http://www.nytimes.com/2013/09/06/us/nsa-foils-much-internet-encryption.html?smid=tw-nytimes&_r=0