HOUSTON - Early inspections have revealed no damage to the space shuttle Discovery, NASA said Wednesday after a day of checking out the spacecraft with on-board cameras. That means that when the shuttle meets up with the international space station Thursday morning it likely won't need emergency repairs while hooked up with the orbital outpost — unlike last year's daring spacewalk fixes. Discovery's delicate heat shield and everything else appear at first glance to be in near perfect shape, NASA officials said, although it's still very early in the analysis. Engineers are nowhere near finished poring over 70 minutes of...