It's the Day's Day of Days! Because Dr. Tongue's 3-D House of Stewardesses.
The ongoing problem of Muir's fictional universe is that he keeps trying to pose his characters as a bunch of everymen, while simultaneously painting them as violent "freedom-fighters". (And also billionaires with loads of tech and political connections, but that's another problem.) Now, it might be possible to have them start out as the former and move to the latter, but Muir doesn't do that--Zed and Sam are and always have been simultaneously "normal folks" AND people who've regularly violently attacking federal agents. Which leads to the problem that the "bad guys" have every reason to be suspicious of these people as they've rather regularly broken the law, frequently in a violent fashion.
But then, in Muir's world, only those OTHER people are terrorists.