Bucky is fingering a pendant - he'll put it on to try how it changes him in a moment, but focuses on the discussion, first.

"Does anybody know how we're gonna pass through the barrier? And what can pass?" Maybe, they can set up a means of communication that doesn't rely on one of them leaving - or entering. "Just in case something goes wrong, and whoever's inside can't leave." His eyes train on the papers in front of them. Maybe the answer's here already.

"I have... at least one person who could be trusted with pickup of information, just in case. She's already saved the turtle at least once back... a year and a half ago. Natasha Romanoff." He trust Steve. He trusts Steve more than Natasha. But months and months here have given him some idea of her skills, and the kind of sacrifices she is willing to make, to get the job done.

It's an offer for them to ponder. With it 'on the table,' Bucky shakes his head, and slips the pendant on.

Now they'll know how he'll look under the guise. Generally.