FBI director prepared to issue rebuttal if Nunes memo released, Fran Townsend says CBS News senior national security analyst Fran Townsend, who served 13 years in the Justice Department and was homeland security adviser to President George W. Bush, joins "CBS This Morning" to discuss the classified memo from Rep. Devin Nunes alleging inappropriate surveillance of the Trump campaign by the FBI and Justice Department, why that memo is inherently "one-sided," and the implications for the FBI's reputation.