>> Sen. John McCain probably wishes he didn’t sing “bomb Iran” to the tune of the Beach Boy’s “Barbara Ann” at a meeting with supporters. Or at least he wishes it wasn’t captured on YouTube. [via Reason’s Hit & Run] >> Local groups continue to schedule memorials to the victims of Monday’s shootings at Virginia Tech. You can find a good list of Washington-area events here. [NBC4] >> Tickets for both Wilco and the…