Tony Sager

FILE - This June 6, 2013, file photo, shows a sign outside the National Security Administration (NSA) campus in Fort Meade, Md. In the wake of the San Bernardino, California, shootings, Republican presidential candidates Marco Rubio, Jeb Bush, Chris Christie and Lindsey Graham are complaining that U.S. intelligence agencies have lost their authority to collect bulk data on nearly all U.S. phone calls under a controversial National Security Agency surveillance program. All four candidates have overstated their case. (AP Photo/Patrick Semansky, File)

NSA’s secret sauce to its employees’ loyalty

The National Security Agency has retained almost 97 percent of its employees in 2015.

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