Billboard reports that Blues Traveler lead-singer John Popper was arrested in Washington state Tuesday when the vehicle he was riding in (he wasn't driving) was clocked going 111 mph on Interstate 90. That's the least of Popper's worries, though. State troopers also found marijuana and, oddly enough, an arsenal of weapons in the car. The weapons included a Taser, switchblade, and several handguns and rifles. Is dude in a militia? And should he now rename the band "Blaze Traveler?" (Rim shot!)