Like every other government entity, the original mission becomes secondary to the continuation and growth of the organization.
If a government organization has the equipment and the training they will find a way and a place to use it.
If there are no circumstances to justify their existence they will manufacture some.
The original mission is to intimidate and terrorize citizens
If there are no circumstances to justify their existence they will manufacture some
If if they kill some poor innocent schmuck or maim a baby, no harm no foul right? After all the police get to go home to their families at night don't they, and that's all that's important.
The old saw "When all you have is a hammer . . ."
Up-arming the police is also a great way to get around that pesky posse comitatus thingy.
I find it disturbing that SWAT teams are increasingly being used to serve routine warrants on non-violent offenders. It seems law enforcement, like all other parts of government suffers from a chronic lack of common sense.