[dashundchen]

> Earlier this year there was a homeless man waving a knife at pedestrians a few blocks from my house.

That's sort of the point. That's a situation that may require both an armed officer and a social worker. it's not to say that there is no situation that would require it in a heavily armed nation like the US but frequently it does not. In fact many would say sending heavily armed officers where it does not require it can escalate things, and affects how these officers view and police their communities.