The wife of an American nuclear engineer pleaded guilty on Feb. 18 to plotting with her husband to pass on sensitive data to what the couple thought was a foreign official. Diana Toebbe, 46, of Annapolis, Maryland, pleaded guilty to conspiracy to communicate restricted data in federal court in West Virginia. According to court documents, Dianna Toebbe’s husband Jonathan Toebbe, a Navy nuclear engineer, in mid-2021 left behind a secure digital card containing restricted data including “militarily sensitive design elements” and performance details on submarine reactors at a dead drop in West Virginia. Jonathan Toebbe, 43, soon proposed a plan, using a different dead drop in Pennsylvania, to provide 51 packages of information over time, in exchange for $5 million in cryptocurrency. On two other occasions, the nuclear engineer left information behind at prearranged locations, one time in Virginia and the other back in West Virginia. Dianne Toebbe served as …