Jennifer Bradley and Richard Shearer, The Brookings Institution, September 15, 2011
Bruce Katz and Josh Hjartarson, National Post, June 17, 2011
Howard Wial, The Avenue, The New Republic, January 20, 2011
Frank Samuel, The Brookings Institution, January 29, 2010
Christopher Sands, The Brookings Institution, July 13, 2009
Steven Globerman and Paul Storer, The Brookings Instuitution, July 13, 2009
John C. Austin, Britany Affolter-Caine and Elaine Dezenski, The Brookings Institution, March 24, 2008