Absolutely. For starters, LEA are aware that if you're using tails/TBB there is an increased chance you're doing something they'd like to be aware of, over say

Absolutely. For starters, LEA are aware that if you're using tails/TBB there is an increased chance you're doing something they'd like to be aware of, over say a standard windows/chrome combination. Secondly, the tails/TBB setup has a very unfortunate side-effect: it gives LEA a specific target they can aim for in terms of hunting for vulnerabilities and writing exploits. The situation is made significantly worse by the fact that firefox hasn't yet fully implemented a sandbox - hence why FF is rarely seen in pwn2own style hacking challenges; it's just not a difficult target.