What we had feared for years happens. In China (mainland), the genuine certificate of google.com/gmail could not be verified from time to time (possibly due to

What we had feared for years happens. In China (mainland), the genuine certificate of google.com/gmail could not be verified from time to time (possibly due to inaccessibility to intermediate CA that signed these certs), adding up to the speculation that a mass surveillance using Man in The Middle attack is drawing near.