LAW FIRM PRO BONO CHALLENGE SIGNATORIES *Akin Gump Strauss Hauer & Feld LLP Buchanan Ingersoll & Rooney PC Alston & Bird LLP *Carlton Fields, P.A. *Arent Fox LLP Carrington, Coleman, Sloman & Blumenthal, L.L.P. Armstrong Teasdale LLP Chadbourne & Parke LLP Arnall Golden Gregory LLP *Cleary Gottlieb Steen & Hamilton LLP *Arnold & Porter LLP Coblentz, Patch, Duffy, and Bass LLP Baker & Daniels LLP Cohen Milstein Sellers & Toll PLLC Baker & McKenzie Cooley LLP Baker Botts L.L.P. *Covington & Burling LLP Ballard Spahr LLP Cozen O’Connor Barnes & Thornburg LLP Crowell & Moring LLP Beveridge & Diamond PC Davis Wright Tremaine LLP *Bingham McCutchen LLP Day Pitney LLP Blank Rome LLP *Debevoise & Plimpton LLP Bradley Arant Boult Cummings LLP Dechert LLP Briggs and Morgan, PA Dewey & LeBoeuf LLP Brown Rudnick LLP Dickstein Shapiro LLP *Bryan Cave LLP *DLA Piper LLP (US) * denotes Charter Signatories to the Challenge As of March 11, 2011 145 firms *Dorsey & Whitney LLP *Hogan Lovells Dow Lohnes PLLC *Holland & Hart LLP *Drinker Biddle & Reath LLP *Holland & Knight LLP Dykema Gossett PLLC Hollingsworth LLP Edwards Angell Palmer & Dodge LLP Howard Rice Nemerovski Canady Falk & Rabkin Epstein Becker & Green, P.C. Washington, DC Office Only Hughes Hubbard & Reed LLP Faegre & Benson LLP *Hunton & Williams LLP Farella Braun + Martel LLP Husch Blackwell Sanders LLP Fenwick & West LLP *Jenner & Block LLP Finnegan, Henderson, Farabow, Garrett & K&L Gates LLP Dunner, L.L.P. Kaye Scholer LLP Foley & Lardner LLP Kilpatrick Stockton LLP Foley Hoag LLP King & Spalding LLP Foster Pepper PLLC Washington, DC Office Only *Fredrikson & Byron P.A. Kirkland & Ellis LLP Fried, Frank, Harris, Shriver Kramer Levin Naftalis & Frankel LLP & Jacobson LLP Latham & Watkins LLP Fulbright & Jaworski L.L.P. Leonard, Street and Deinard *Garvey Schubert Barer Lindquist & Vennum PLLP *Gibbons P.C. Linklaters LLP Gibson, Dunn & Crutcher LLP New York Office Only Goodwin Procter LLP Loeb & Loeb LLP Goulston & Storrs PC Lowenstein Sandler PC Graves, Dougherty, Hearon & Moody, P.C. Manatt, Phelps & Phillips, LLP * denotes Charter Signatories to the Challenge As of March 11, 2011 145 firms Maslon Edelman Borman & Brand, LLP Paul, Hastings, Janofsky & Walker LLP Mayer Brown LLP *Paul, Weiss, Rifkind, Wharton & Garrison LLP McCarter & English, LLP Pepper Hamilton LLP McDermott Will & Emery Perkins Coie LLP McGuireWoods LLP Pillsbury Winthrop Shaw Pittman LLP McKenna Long & Aldridge LLP *Proskauer Rose LLP Michael Best & Friedrich LLP Quarles & Brady LLP Milbank, Tweed, Hadley & McCloy LLP *Reed Smith LLP *Miller, Canfield, Paddock and Stone, P.L.C. Robins, Kaplan, Miller & Ciresi L.L.P. Miller & Chevalier Chartered Robinson & Cole LLP Miller Nash LLP Rodey, Dickason, Sloan, Akin, & Robb, PA Mintz Levin Cohn Ferris Glovsky and Popeo P.C. Saul Ewing LLP Morgan, Lewis & Bockius LLP Schiff Hardin LLP *Morrison & Foerster LLP Schnader Harrison Segal & Lewis LLP *Munger, Tolles & Olson LLP Seyfarth Shaw LLP *Nelson Mullins Riley & Scarborough LLP *Shearman & Sterling LLP Nixon Peabody LLP *Shipman & Goodwin LLP Nutter McClennen & Fish LLP Sidley Austin LLP O’Melveny & Myers LLP Simpson Thacher & Bartlett LLP Oppenheimer Wolff & Donnelly LLP *Skadden, Arps, Slate, Meagher & Flom LLP *Orrick, Herrington & Sutcliffe LLP Smith, Gambrell & Russell, LLP Patterson Belknap Webb & Tyler LLP Snell & Wilmer L.L.P. Patton Boggs LLP * denotes Charter Signatories to the Challenge As of March 11, 2011 145 firms *SNR Denton *Steptoe & Johnson LLP Strasburger & Price, LLP Sutherland Asbill & Brennan LLP Thompson Coburn LLP Troutman Sanders LLP Van Cott, Bagley, Cornwall & McCarthy *Venable LLP Vinson & Elkins LLP Vorys, Sater, Seymour and Pease LLP Weil, Gotshal & Manges LLP White & Case LLP Wildman, Harrold, Allen & Dixon LLP Wiley Rein LLP Williams & Connolly LLP *Wilmer Cutler Pickering Hale and Dorr LLP Wilson Sonsini Goodrich & Rosati *Winston & Strawn LLP Womble Carlyle Sandridge & Rice, PLLC Zuckerman Spaeder LLP * denotes Charter Signatories to the Challenge As of March 11, 2011 145 firms .