He can feel the walls breaking. Feel them crumbling around him, and it's all he can do to lock any and all MCUSA and SHIELD secrets away in time before it's over, and Riddle's managed to slam through. All of what Loki did laid bare before the dark wizard. How easily he was turned to Loki's will, despite how hard and desperately he fought. Try as he might, he had not been able to throw off the Imperius curse, or the Leglliumency that Loki had followed it up with. Just in case.
Well, well, well, Barton. What have we here?
*After the first break, the rest came tearing down in succession, falling to rubble in Clint’s mind. Voldemort could have pried further, taken the time to see if he could access the trade secrets he knew lay deeper still, but that wasn’t why he was here. This was not an official interrogation. He fingered the scar on his neck. This was personal. There had been another before him, someone who took the painstaking amount of time to dismantle Barton’s defenses and them slam through like a train. So this was what Barton hadn’t wanted him to see.*
Fascinating, Barton, Fascinating. Look at that, are those muggles? Oh, what are you doing to them, Barton? Killing them? Tsk, tsk, you spoke so highly of them to me not a half hour ago. The imperious curse, yes, what a dangerous spell. He really had a hold on you, didn’t he? And you did everything he wanted, such a good little puppet, and you saw, you had a front row seat to everything.
Do the other aurors know? About how this man left your mind, your defenses in tatters? I don’t think they do. If they were to find out, they’d put you at a desk, wouldn’t they? For your own good. So you wouldn’t be exploited again. What will you do next time, Barton? How many muggles are you going to kill the next time this happens? They covered for you the first time, but with a mind like yours, you are just a disaster waiting to happen. Not eating, not sleeping - it’s a wonder you’re here, fighting me. It’s all a facade, isn’t it Clint? You are nothing.