FIVE ALL-STARS Evan Kohlmann L'04 Eric Rothschild L'93 Miguel Rodriguez C'94 L'99 Derek Pew L'93 Aretha Delight Davis L'97

Like any entrepreneur, he said, he is building a client base, whether it is in testifying in court or with companies that want to know about international security. It is a slow, but steady, pace, he said.

“I think people are starting to know I am diligent and one of those experts you can count on, not just some obsessed, crazy guy. It is important to be thorough, and that is what I am,” he said.

Robert Strauss, formerly a reporter for Sports Illustrated and The Philadelphia Daily News, is a freelance writer whose work regularly appears in The New York Times, Washington Post, and Los Angeles Times. He is also an adjunct instructor, teaching writing in the Penn English Department.