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The operation was set up in a home in Long Island, NY, to which 18 men came over two-and-a-half days after making a date for sex with a minor. One of the men in the investigation was a New York City firefighter, who was later fired.

Chris Hansen's report on the dangers of Internet chat rooms for kids includes a hidden-camera investigation and suggestions on how to protect children from online predators.

Chris Hansen offers a second update to his investigation into online predators and the hazards of Internet chat rooms for children.

Chris Hansen travels to Ohio and Florida to file the first in a new series of hidden-camera reports on alleged online sexual predators as part of the ongoing “To Catch a Predator” series.

Is this a crime that only happens in and around big cities? Or does it happen everywhere? Seventeen men are arrested over a three day period as Dateline goes to the Heartland.

Chris Hansen's investigation into alleged Internet predators continues.

Part two of Chris Hansen's investigation into internet predators in Florida.

20 men over four and a half days were exposed by the show, arrested, prosecuted, and ultimately sentenced.

Chris Hansen presents the second part of his hidden-camera report on alleged Internet predators. His investigation is based in Harris County, Ga.

29 men were netted in three days in a town outside of San Francisco famous for the murder of Polly Klass by a child predator and former residence of JonBenet Ramsey murder suspect John Mark Karr.

Chris Hansen's hidden-camera investigation into alleged Internet predators continues in Petaluma, CA.

Chris Hansen reports on alleged Internet predators in Long Beach, Cal., in Part 1 of his latest “To Catch a Predator” series.

Chris Hansen presents Part 2 of his hidden-camera report on alleged Internet predators in Long Beach, Cal.

Chris Hansen presents a hidden-camera report on alleged Internet predators based in Murphy, Texas.

The conclusion of correspondent Chris Hansen's two-part investigation into alleged Internet predators based in Murphy, Texas.

Chris Hansen investigates alleged Internet predators in a hidden-camera report from Flagler Beach, Fla.

The conclusion of Chris Hansen's two-part investigation into alleged Internet predators based in Flagler Beach, Fla.

Chris Hansen investigates alleged Internet predators in a hidden-camera report from Ocean County, N.J.

The conclusion of Chris Hansen's investigation of alleged Internet predators in Ocean County, N.J.

Chris Hansen corners alleged Internet stalkers in Bowling Green, Ky., in the 12th edition of "To Catch a Predator.