SI at the Majors Roundtable: Tiger's in control, but he's not alone at the top

There's still a long way to go, but through 36 holes, Tiger Woods looks like he will be tough to beat this weekend at the U.S. Open. Peter Kessler, Damon Hack and David Dusek discuss the contenders, plus what went wrong for Luke Donald and Rory McIlroy.