The NSA is Not Made of Magic
schneier.com
schneier.com
Even on the NSA's budget they can't p0wn every endpoint and they sure can't break strong encryption on a mass scale. Mass surveillance depends on everyone communicating in the open.
Mass surveillance can be ended. Parallel construction can be ended. Dissidents and activists can have secure communication. The spooks can be forced back into the business of black bag jobs, where they must pick a limited number of targets carefully. Your ability to keep information deniable and secure can be made nearly absolute, barring torture, which, alas, we're not actually barring. All the more reason to be careful.