The most depressing thing I read this week

...is this passage from the Washington Post coverage of the shooting at Santa Fe High School in Texas:

His school board approved a plan in November to allow some school staff members to carry guns, joining more than 170 school districts in Texas that have made similar plans. But Santa Fe was still working on it, Norman said. People needed to be trained. Details needed to be worked out, such as a requirement that school guns fire only frangible bullets, which break into small pieces and are unlikely to pass through victims, as a way to limit the danger to innocent students.

We've lost our minds.