Reveal won a Pulitzer Prize in this year for revealing how all around the country judges steered convicted drug offenders into rehab / thinly disguised private industry work camps. I guess that is pretty extremist if one is in favor of private industry work camps and judges benefiting from them.
Nomination details: http://www.pulitzer.org/finalists/amy-julia-harris-and-shosh...
Reveal was also a finalist in 2013 (back when it was named California Watch) for the award in public service (generally considered the most prestigious of the Pulitzers): http://www.pulitzer.org/finalists/california-watch
Turns out they were a finalist not the winners. The difference is here: http://www.pulitzer.org/page/frequently-asked-questions (no. 23). 3 finalists are chosen by that category jury from the submissions and one winner is picked by the board from that.