$1,000,000,000,000+ ...

The reason the term, "Homeland Security" is so unsettling is because it implies we have a legitimate interest in securing other places besides the United States. There is no such thing as "the homeland." There's the United States, and that's where we live.

We have no business laying claim to or taking responsibility for defending other places. After all,

Why forego the advantages of so peculiar a situation? Why quit our own to stand upon foreign ground? Why, by interweaving our destiny with that of any part of Europe, entangle our peace and prosperity in the toils of European ambition, rivalship, interest, humor, or caprice?

It is our true policy to steer clear of permanent alliances with any portion of the foreign world, so far, I mean, as we are now at liberty to do it, for let me not be understood as capable of patronizing infidelity to existing engagements. I hold the maxim no less applicable to public than to private affairs that honesty is always the best policy. I repeat, therefore, let those engagements be observed in their genuine sense. But in my opinion it is unnecessary and would be unwise to extend them.

Taking care always to keep ourselves by suitable establishments on a respectable defensive posture, we may safely trust to temporary alliances for extraordinary emergencies.

Farewell Address (1796)
George Washington

Who are we kidding? As Larry Margusak of the AP says in his article, Guards Fault Homeland Security Protection,

WASHINGTON - The agency entrusted with protecting the U.S. homeland is having difficulty safeguarding its own headquarters, say private security guards at the complex.

So now it's a matter of reading up on SIPRI and doing whatever is necessary to shut the killers down.