Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, looks at a computer screen with Google employee Ted Souder, Tuesday, March 20, 2012, at the Chicago Google headquarters, in Chicago. (AP Photo/Steven Senne)

Photo by: Steven Senne

Republican presidential candidate, former Massachusetts Gov. Mitt Romney, right, looks at a computer screen with Google employee Ted Souder, Tuesday, March 20, 2012, at the Chicago Google headquarters, in Chicago. (AP Photo/Steven Senne)