Cochese has the gist of it. I can't find the numbers atm, but one of the think tanks did a break down of it, and it came out that you could eliminate homelessnes, malnutrition/hunger, and all fund all social services for everyone for 18 billion per year.
Don't forget that the government measures poverty as FAMILY of four living on 25k or less per year. Which is a joke as the poverty level for a single person in an average city (population of 500k+) is 21k (12hr). Real poverty in the US is much closer to double that - around 70 million people.http://www.census.gov/hhes/www/poverty.html
"The ability to quote is a serviceable substitute for wit."
- W. Somerset Maugham
"And then, suddenly and without warning, it turned into a real-life case of hungry, hungry hippos."
- Stephen Colbert