CNN'a story neglects to say that it could have been done manually, but that they had ruled that out somehow. I once was a control room operator for a live TV production and though it was over 30 years ago, I remember how I could manually reproduce what was done to Cheney. One way you switch between video sources to select the one to go out over the air to move the "wiper". It looks like a T-handled lever, like an automatic transmission lever on your car's console. Except, instead of being one handle, it's split down the middle into...