Does anyone not believe internet newsgroups like Bloomberg are trying to foment riots.. often racial ones?

Newgroups are reaching newer lows in my opinion. They've been babbling the same topics for years.. real estate turning around (not), hyperinflation (not), sexist slants focusing on men out of work vs women, and very prominently.. the possibility of riots particularly racial ones due to unemployment.
http://www.nytimes.com/2011/09/17/nyregion/mayor-bloomberg-invokes-a-concern-of-riots-on-radio.html
Just because they riot in Africa and Greece, does that mean the USA has to stoop to such tactics?