Tennessee Republicans pass a bill to let some teachers carry concealed handguns at public schools, and to bar parents and other teachers from knowing who is armed.

N ASHVILLE, Tenn. — Protesters chanted “Blood on your hands” at Tennessee House Republicans on Tuesday after they passed a bill that would allow some teachers and staff to carry concealed handguns on public school grounds, and bar parents and other teachers from knowing who was armed.

The move came about a year after the state’s deadliest school shooting and was opposed by some of the families whose children survived the attack.