America's position as global leader threatened, says professional golfer

Dr. Phil Mickelson, professional golfer and co-founder of Mickelson Exxon Mobil Teachers Academy, says that there has been a decline in math, science and engineering graduates. Mickelson says that in America, only 15 percent of graduates are in science and math fields as opposed to Singapore's 67 percent and China's 50 percent. Mickelson says this can threaten the U.S. as a global leader. (0:36)
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