Photos: Puppies help TSA keep airports safe

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SAN ANTONIO -- The Transportation Security Administration's Canine Breeding and Development Center is located at Lackland Air Force Base in San Antonio, Texas.  Commonly known as the Puppy Program, the photo gallery below features the TSA's latest recruits.

The TSA Puppy Program breeds working detector dogs, but it can't accomplish this goal without the help of local citizens who can foster the babies until they turn about 12 months old.

With 125 to 220 million smell-sensitive receptors, dogs have a sense of smell that is almost impossible for humans to comprehend. Dogs can discriminate odors at concentrations nearly 100 million times lower than humans, which is why these pups are natural detectors. 

Ultimately, these pups will protect airports, mass transit centers and even ferry boats with proper training.