For the benefit of the smartarse PDQ, I quote Peter T's opening line: -

"In the continuing saga of Obama losing the thread of the thing, it now appears that in the teeth of massive unemployment and a populist uprising, he is proposing a freeze on discriminatory spending --"

So what's "discriminatory spending" - precisely?

If it means "discretionary spending", what's that - precisely?

It seems to me that spending on the military is discretionary - one could decide to cut back the military.