They are used to delay or block legislation someone does not like. They used to be rare, but are used more frequently now.
Read about it:
http://www.google.com/search?sourceid=navclient&aq=&oq=fili&ie=UTF-8&rlz=1T4VRHB_enUS648US649&q=filibuster&gs_l=hp..0.0i131l2j0j0i131j0.0.0.1.112960...........0._7Jg-6QuWsA
How often are filibusters used? Why?
1 answer