Stepped-up security at commencement ceremonies for the University of Colorado today, one day after a scare at nearby Boulder High School.
About 18,000 people showed up to watch about 5,000 graduates get their degrees at Folsom Stadium.
Meanwhile, classes resumed at Boulder High School after police failed to turn up any sign of two young males wearing camouflage spotted Thursday. A cook saw them in the cafeteria before students arrived.
The two ran off.
Two extra police officers are at the school and only two entrances were opened today.
Staffers kept watch as students entered this morning.