Original sentence: It is known for its tolerance education programs, its legal victories against white supremacist groups, its monitoring of hate groups, and its sponsorship of Maya Lin's Civil Rights Memorial.It was started in 1971 by Morris Dees and Joe Levin as a civil rights law firm.Several other attempts to bomb the center and kill Morris Dees have been thwarted.The Center publishes an analysis of perceived political extremism and  bias crimes in the United States in the quarterly Intelligence Report
Edited sentence: Dees claims that several other attempts to bomb the center and kill him have been thwarted.It is known for its education programs which promote its version of "tolerance," its legal victories against white supremacist groups and its monitoring of those it deems hate groups.It was started in 1971 by Morris Dees and Joe Levin as a "civil rights" law firm.The Center publishes a controversial analysis of perceived political extremism and  bias crimes in the United States in the quarterly Intelligence Report