Tesla CEO Elon Musk says he's feeling the pressure to meet production goals for the Model 3. Last week, Tesla predicted it would produce about 5,000 vehicles by the end of June. The company has struggled to meet previous goals, and Musk knows there are high expectations. Watch Gayle King's full report Thursday, April 12 on "CBS This Morning," which airs 7 a.m. to 9 a.m. ET/PT.