Today, there was an assassination in Tehran, and there is considerable speculation about who was responsible.
The victim was 50-year-old Masoud Ali Mohammadi, a professor of nuclear physics at Tehran University. He was killed when a remote-controlled bomb rigged to a motorcycle blew up outside his home this morning.
An Iranian prosecutor claimed the C.I.A. and Mossad probably had a hand in the killing. But Mohammadi had publicly backed opposition leader Mir Hossein Mousavi.
For more about covert efforts to undermine Iran’s nuclear program, Daljit Dhaliwal speaks to Flynt Leverett, director of the Iran initiative at the New America Foundation and author of the blog RaceForIran.