Carrie Johnson

The FBI has requested a DNA sample from Unabomber Ted Kaczynski in connection with the infamous 1982 Tylenol poisonings in Chicago that killed seven and prompted a recall of the painkiller. Kaczynski is serving a life sentence for his part in bombings that killed three people.

The FBI has requested a DNA sample from Unabomber Ted Kaczynski in connection with the infamous 1982 Tylenol poisonings. Kaczynski wrote in court papers that federal investigators want his DNA to find out whether he was involved in putting cyanide in Tylenol pills decades ago.

Cynthia Yates, an FBI spokeswoman in Chicago, said in an interview that Kaczynski hasn't provided investigators with a sample. Yates added the bureau has "attempted to get DNA samples from numerous individuals" as part of a broad reexamination of evidence in the still unsolved 1982 poisonings.

This week's conviction of hedge fund billionaire Raj Rajaratnam is breathing new life into the government's campaign against insider trading. Prosecutors in Manhattan have 11 more defendants waiting in the dock — and another big trial is scheduled to begin Monday.

Over the past few years, federal prosecutors in New York have filed insider trading charges against 47 people. More than half of them pleaded guilty — but not Zvi Goffer.

President Obama has announced he will ask Congress to extend the tenure of his FBI director for two more years.

Robert Mueller's 10-year term is set to expire in September.

A federal grand jury in Virginia is scheduled to hear testimony on Wednesday from witnesses in one of the government's biggest criminal investigations of a national security leak.

Prosecutors are trying to build a case against WikiLeaks founder Julian Assange, whose website has embarrassed the U.S. government by disclosing sensitive diplomatic and military information.

The WikiLeaks case is part of a much broader campaign by the Obama administration to crack down on leakers.

A Worrisome Development