CHAPTER 1 (length 6:00)

Why would Asher Karni -- an Israeli citizen and Orthodox Jew -- sell nuclear technology to Pakistan? Reporter Mark Schapiro visits Eagle Technology in Cape Town, South Africa, where Karni worked as an agent importing sophisticated electronic equipment for the military and other clients. The company's lawyer says they fired Karni when they caught him double-dealing.

CHAPTER 2 (length 4:08)

An anonymous tipster in South Africa alerted U.S. officials to Asher Karni's secret deals with Pakistani businessman Humayun Khan. In December 2003, a team of South African police raided Karni's home office, seizing his computer files. Karni's lawyer, Peter Kantor, tells Schapiro that if Karni was really selling nuclear components to Pakistan, "he was leading a fundamentally dishonest life."

CHAPTER 3 (length 5:53)

Asher Karni claimed that the "triggered spark gaps" he was importing from the U.S. were bound for Baragwanath Hospital in Soweto, South Africa. The spark gaps are a "dual-use" item -- they can be used to trigger an atomic weapon or in a medical procedure to break up kidney stones. But Dr. Lloyd Thompson of Baragwanath's urology department tells Schapiro that the hospital never placed the order with Karni.