Wow.

I just came from downtown, via bus.

If you get a chance, do that.

Or walk.

Yes, there is a VERY visible police/military presence.

But, if that's all you're looking for, here's what you'll miss:

You'll miss international visitors to Pgh in their traditional regalia.

You'll miss protesters tying t-shirts around their heads to emulate burkhas, to tempt the authorities.

You'll miss an opportunity to touch history.

Yeah, it's the G-20, y'all.