Wife of Navy Nuclear Engineer Pleads Guilty in Submarine Spy Case

The wife of a Navy nuclear engineer pleaded guilty on Friday to taking part in a conspiracy to sell submarine secrets to a foreign country, bringing to a close an espionage case that mixed spycraft and politics with the travails of a suburban family.

Four days after her husband, Jonathan Toebbe, pleaded guilty in the case under a deal with the government, Diana Toebbe, a high school teacher in Annapolis, Md., acknowledged her part in a scheme to sell nuclear reactor secrets her husband had taken from the Navy, and will face a sentence of not more than three years, according to the terms of her agreement with the government. Her plea was entered during a hearing at a federal courthouse in Martinsburg.