Okay, that's a bit of hyperbole, but not that much.
The Alameda police department found that HALF of their officers had failed their psychological testing. Testing that was given BEFORE they allowed them to be armed cops. Luckily, one of those crazy cops shot a couple who was part of a love triangle with him. The subsequent investigation discovered the failed tests.
The response from the county is exactly what you would expect from a government that hates you. We will retest them because tests are better now and they were probably just too immature to pass the test. But NOT immature enough not to give them a gun!?!