Approx 1 in 4 homeless are veterans.
approx 1 in 4 homeless are products of foster care
approx 1 in 4 homeless suffer from moderate to severe mental illness
http://www.nationalhomeless.org/publications/facts/Mental_Illness.pdf
not sure the percentage if we were to intersect the two on a ven diagram.
Here's a fun little story, we go into a war against terror all over the middle east and spend 12 billion a month, at the same time, our dickhead asshole president cuts taxes and in turn cuts funding to programs that can provide services to our homeless, we create more homeless by shipping them to the desert to witness some ill shit, then the average american calls all homeless shiftless leaches, and lets the perception of a few 'nickle & dime' hustlers who exploit peoples kindness represent the entire homeless population, b/c it makes it validates their excuse to say fuck them, they ain't gettin' none of my chips....
remember folks, the more you give the more you get....