A new study by the Southern Poverty Law Center describes a big rise in hate groups across the country.
By its count, there are now more than 1,000 active extremist groups in the U.S. Experts say the largest increase comes from militias that consider the federal government their enemy.
http://www.npr.org/2011/02/23/133970226/new-report-higher-hate-group-count-than-ever
