 Most medical students at Johns Hopkins University will no longer pay tuition, starting in the fall, thanks to a billion-dollar gift from businessman, philanthropist, and former New York Mayor Mike Bloomberg. WTOP's Dick Uliano reports the extraordinary gift could impact students and patients across the nation. This is a tremendous day for Johns Hopkins. University President Ron Daniels says 100% of tuition will be covered for med students from families earning under $300,000 a year.