Isnt it weird that drasticly restrictive all encompassing rules are hastily pushed after attacks? Blanket Decryption of messages, and other privacy suppression

Isnt it weird that drasticly restrictive all encompassing rules are hastily pushed after attacks? Blanket Decryption of messages, and other privacy suppression rules will make intelligence agencies into super powers with too much control at a very reduced cost (less messy assassinations, or physical threats needed)