The Liberty Bell and Homeless Guys

I was in Philadelphia this week for a conference and had just a bit of time to wander around town. I saw the Liberty Bell, which was cool, but was floored to see homeless people trying to get warm over a grate less than a block away.

Any thoughts on these types of experiences? How do I process something like this? Reply here, or at http://blog.neverthesamerivertwice.com/.