Brian L. Briggs, 22, recently worked as a summer camp counselor at Friends' Central, a Quaker school in Wynnewood. The FBI arrested him Aug. 6 at his North Wilmington home after a three-month investigation.

The criminal complaint said Briggs told an undercover FBI agent posing as the mother of a 13-year-old girl that he had a "useless English degree" and might decide to teach. The agent suggested that would put him near "little girls," and he called such proximity a "fringe benefit," the complaint said.

In a statement released after the arrest, headmaster David M. Felsen said Briggs would "not be returning to any employment at Friends' Central."

Briggs' attorney, Edmund Daniel Lyons Jr., was not available for comment.

Briggs allegedly told authorities he started looking at illegal photos of underage girls in the last few years. He said he used a chat site to meet "like-minded people, and we traded pictures," the complaint said.

He also told the agent he had sexually touched a child several years ago when he was 18 and working at a camp he did not identify, the complaint said. He described "a great feel" after "helping a kid put on her swimsuit," the complaint said.

Briggs is accused of transmitting to the undercover agent, who was based in Phoenix, graphic images of girls from about age 5 to 13 engaged in sex acts. Agents found more than 100 images of suspected child pornography on computer equipment Briggs owned, said Edward J. McAndrew, an assistant U.S. attorney in Delaware.

None of the children pictured are believed to have been students or campers at Friends' Central, McAndrew said.

Briggs also worked in the after-school program at Friends' Central, where his duties included escorting children to various activities, McAndrew said.

Briggs, who waived his detention hearing, has been held without bail since his arrest.

Also indicted on child-pornography charges was Edward Brosky, 72, of North Wilmington, who came to the attention of investigators in April 2008, when he signed in to an online group focused on trading sexually explicit images of children, a news release said.

On July 30, 2008, agents searched Brosky's home. A preview search of one of his computer drives turned up more than 20,000 images of child pornography, the release said.

If convicted of the most serious child-pornography charges, Briggs and Brosky face mandatory minimum sentences of five years and a maximum of 20 years in prison, the release said.