Once in a while they say that the "FBI cracked TOR blah blah...", and "there are TOR vulnerabilities that only the FBI is aware of blah blah.. ".
TOR and I2P are still safe places.
When they seized hidden services like SilkRoad, it was just because their owners made big human mistakes that compromised their privacy.
It was not TOR fault :)
So don't get fooled by propaganda.
If you do everything right, nobody can find out who you are.