"You realize you're"--he pinches his thumb and index finger together and gestures at the tiny space in between--"against the whole government."
Walsh, his friends and his lawyer command a table by a window, where they pass the time talking and working on other business.
"Coffee, cigarettes, cards, jokes," he says, when asked how he passes the time.
"I never thought I'd like a cafeteria in a federal building this much, but I'm starting to grow quite fond of it," he says. "I've gotten to know all the employees. I say hello to everyone. It feels like campaigning."
Despite the friendly atmosphere, Walsh says he will not be upset to leave the cafeteria, and this case, behind.
"It's a very hard experience to go through," he says. "It'll always leave a mark."