Tim's expression goes through several modes: surprise, concern, alarm, consideration, back to concern and then back to the default 'brooding'.
"Bane's becoming an X factor. In theory he's working for the government, a disavowed branch of it, but he's got Federal backing somewhat."
"He also knows or guesses way to much about Nightwing, Batman and I and who we are for my comfort. I know you'll help anyone who comes through your door and obeys the rules but...be careful with him."