AN EYE-OPENING "PRIMETIME" TEST REVEALS HOW VULNERABLE TEENAGED GIRLS CAN BE TO PREDATORS AND WHAT THEY CAN DO TO PROTECT THEMSELVES, AIRING AUGUST 12 ON ABC

Also: A Young Girl on the Front Lines of the Stem Cell Debate

"Primetime" teams up with a child safety expert and, with the permission of parents, puts some teens to the test to see how vulnerable they are to potential abductors. The result is a revealing look at how the girls react to some typical ploys used by predators. With astonished parents looking on, several girls fall for the tricks and find themselves in potentially dangerous positions, while others manage to stay safe. The expert tells Chris Cuomo what girls can do to prevent becoming victims. "Primetime Thursday" airs THURSDAY, AUGUST 12 (10:00-11:00 p.m., ET), on the ABC Television Network.

Also: Actress Suzanne Somers has made millions selling everything from protein drinks to pajamas on the Home Shopping Network. In a report originally broadcast last December, Jay Schadler finds that thousands of aspiring entrepreneurs yearn to follow in her footsteps. "Primetime" gets a rare look at three budding businesspeople's auditions to appear on the cable network, where it's all about product and pitch. They get their shot, but have just twelve minutes to meet a sales quota or see their dreams disappear as quickly as a remote control can change the channel.

And: In a "Primetime" "My Take" feature, Ronald Reagan's daughter, Patti Davis, interviews Tessa Wick, a thirteen year-old who has become a passionate advocate for embryonic stem cell therapy research after being diagnosed with juvenile diabetes. Wick explains why she has decided to put herself on the front lines of a debate that has become a hot-button issue in the current election.

Plus: Behind the scenes of "Primetime's" search for the woman who will become the new "That Was The Week That Was" singer. Beginning next month, each edition of "Primetime Live" will end with a short "That Was The Week That Was" segment, featuring lyrics that take a satirical look at the news of the week, from politics to pop culture. The original "That Was the Week That Was" was a pioneering BBC television program that debuted in 1962.

Diane Sawyer and Charles Gibson are the co-anchors of "Primetime Thursday." Shelley Ross is the executive producer. (CLOSE CAPTIONED)