It's U.S. Open season! So we traveled back 10 years to Pebble Beach and the demise of Dustin Johnson ... and Tiger Woods ... and Phil Mickelson ... and Ernie Els. Four future hall of fame golfers wilted while Graeme McDowell and Gregory Havret (who?) took the spotlight. The 2010 U.S. Open at Pebble Beach is one of the biggest what ifs in modern golf history. Alan Shipnuck joins the show for a look back on what could have been.