CNBC's John Harwood reports on President Obama's address from Afghanistan. Also, P.J. Crowley, Fmr. US Asst. Secretary of State; Gen. Barry McCaffrey, U.S. Army (Retired); Rep. Michael Grimm, (R-NY); and Sen. Tom Coburn, (R-OK), discuss whether the President's shift towards "troop withdrawal but not relationship withdrawal" will work.