It's worth reading to the end of Joseph Stack's suicide note

In It Can Happen Here: America On the Brink, self-proclaimed patriot, ardent capitalist and business school professor Bruce Judson (see his blog) begs all who will listen or read his book that the U.S. must rectify the last 30 years of income inequality or face the prospect of riots in the streets, political instability, terrorist acts from disenfranchised and impoverished Americans with nothing left to lose, and the end of America as we know it (see buzzflash book review here ).
Judson says we need universal health care and aggressive social works program (similar to the 1940's New Deal) in order to head off unrest.  Hm.  Bring on the unrest!  But do we have boots in the street yet?  Do we have desperate people with nothing left to lose committing acts of violence?

Well, as of today, we at least have flying your plane into an IRS building.

The media are generally spinning Joe Stack's suicide note as insane ramblings.  It's worth reading and making up your own mind,  here.  But if you don't have the time or inclination, at least check out his final two sentences:

The communist creed: From each according to his ability, to each according to his need.
The capitalist creed: From each according to his gullibility, to each according to his greed

Not very rambling.  Pretty sane.