Does the Federal Government Get Anything Right?

As reports surface concerning the disgusting treatment of Veterans (or rather their NONtreatment), it again raises the question - what is the point of the federal government?

The Church has a very important but often unknown teaching - that of subsidiarity.  "Subsidiarity" says that the Federal Government AND corporations should be AS SMALL AS POSSIBLE, and that large companies and the federal government should only handle those tasks that can't be handled locally.

Our Federal Government is actually pretty good at the two things it SHOULD be doing anyway -
1) highways
2) national defense

I can't think of anything else that
1) the Federal Government SHOULD be involved in
2) the Federal Government does well in the United States