Iran has accused Israel and the United States of being behind the Wednesday morning assassination of Iranian nuclear scientist Mostafa Ahmadi Roshan. See various reports.

MUHAMMAD SAHIMI, moe at usc.edu
Sahimi is a professor at the University of Southern California and lead political columnist for the website PBS/Frontline/Tehran Bureau. He said today: “The latest assassination is part of the covert war that the U.S. and Israel have been waging on Iran for quite some time. The covert war may eventually lead to an overt war, because state-sponsored assassinations of Iranian scientists may provoke Iran to retaliate, which will spark a war that, if started, may engulf the entire region.”