congresswoman gabby giffords was moved to a rehab hospital in houston. touching down just over an hour ago she reached the next step in her recovery only 13 days after a bullet was fired through the left side of her brain. she left tucson university medical center in an ambulance escorted by police and vfw bikers, giving her a dramatic send-off. throngs of supporters wished her well, doing everything they could to show how much they cared. >> we wanted to support her. it's bittersweet, because we certainly will miss her, but we know she's getting the best care. >> just so they know tucson and the country is behind them. >> i thought it was an opportunity to show my support for her. >> of course gabby's husband mark kelly has been by her side day and night. on thursday he talked about her recovery. >> she'll smile at me, she did a