Actually, a surprisingly large amount of terrorists do not use encryption (or at least not on purpose.) For a recent example, after news media widely reported that the Paris attackers used encryption, it turned out that they actually did not [0], and instead simply used common messaging apps. That didn't stop the FBI from using the attacks to denounce encryption, of course.
In reality, using encryption isn't going to help you all that much if a government entity thinks you're suspicious. It may make it marginally harder for them to be suspicious of you, but that's about it. If they want something, and 'encryption' is in the way, 99.9% of the time they have a way around it. A very relevant, and very hilarious article on this: [1]
In reality, using encryption isn't going to help you all that much if a government entity thinks you're suspicious. It may make it marginally harder for them to be suspicious of you, but that's about it. If they want something, and 'encryption' is in the way, 99.9% of the time they have a way around it. A very relevant, and very hilarious article on this: [1]
[0] http://bgr.com/2016/03/22/paris-attacks-iphone-encryption/
[1] https://www.usenix.org/system/files/1401_08-12_mickens.pdf