For the third time in just a month, Howard University warned its campus on Tuesday of a bomb threat. Each time, a law enforcement search found no sign of the threatened explosives. But as students spilled out of academic buildings and headed to their next classes, or lined up for burritos at a nearby Chipotle, the campus was still on edge. “Most of us are feeling anxiety,” said Troix McClendon, a 19-year-old freshman. “There’s not really a lot of information.” The bomb threats at Howard are part of a wave to hit historically Black colleges and universities (HBCUs) this year. On Jan. 4, at least eight HBCUs were threatened. On Monday, at least six were.

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