(1) The bottom 50% of Americans control 2.5% of the nation's wealth.
(2) The top 1% of Americans control 40% of the nation's wealth.
(3) Deuteronomy 15:11 says: "I command you to be openhanded toward your siblings and toward the poor and needy in your land."
Here's some more info:
And of course Jon Stewart shares some insights, too: