Can a High-Tech Biological Passport End Sports Doping Forever?

Lance Armstrong says it helped scare him off performance-enhancing drugs forever. It's already been implemented in track and field as well as cycling, and world tennis authorities are now considering adding it to their arsenal as well.

It's called the "biological passport," a DNA fingerprint of sorts that may well be the next high-tech weapon to gain widespread use against doping in sports.

In his recent highly anticipated interview with Oprah Winfrey, Armstrong pointed to the biological passport as one of the main factors that thwarted his ability to take performance-enhancing drugs without detection.

"It's a question of scheduling," Armstrong said. "I know that sounds weird, bu…
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