According to the www.census.gov/ 85% of people in the U.S have a high school diploma.
We are a first world country we should have everyone in the U.S have a high school diploma.
Each year, some 200,000 additional skilled foreign workers are admitted through a variety of existing visa programs, for STEM degree jobs (Science, Technology, Engineering, and Mathematics)
Even amidst today's high unemployment levels in the U.S, some 300,000 jobs are going unfilled, often because employers are unable to find men and women with the advanced math, science and technology skills that modern manufacturers need.