Columbus, OH – With nearly 20 colleges and universities in the Columbus-area - led by one of the largest in the nation with Ohio State - the city has no trouble attracting students. But city and school officials say keeping those students in Central Ohio after they earn degrees remains a challenge. While there's no consensus on the exact percentage of students who leave after graduation, there's considerable agreement that the number is significant. A city-hired consultant has released a study on why young professionals leave and what might bring them back. Mike Foley reports.