Halo 4 was released a week ago. It made $220 million worldwide in its first 24 hours. Call of Duty: Black Ops 2 is being released today. Both are so-called "first-person shooter" video games, so popular that schools and businesses expect a drop in attendance today with the release of Black Ops 2. Dan Ackerman is senior editor at CNet, where he writes about video games.
KCRW
