Just hours after it was revealed that American soldiers had burned Korans seized at an Afghan detention center in late February, Iran secretly ordered its agents operating inside Afghanistan to exploit the anticipated public outrage by trying to instigate violent protests in the capital, Kabul, and across the western part of the country, according to American officials.

For the most part, the efforts by Iranian agents and local surrogates failed to provoke widespread or lasting unrest, the officials said. Yet with NATO governments preparing for the possibility of retaliation by Iran in the event of an Israeli attack on its nuclear facilities, the issue of Iran’s willingness and ability to foment violence in Afghanistan and elsewhere has taken on added urgency…

One United States government official described the Iranian Embassy in Kabul as having “a very active” program of anti-American provocation, but it is not clear whether Iran deliberately chose to limit its efforts after the Koran burning or was unable to carry out operations that would have caused more significant harm…

Iran has long faced a quandary in shaping an Afghan policy. It has wanted to target the Americans fighting in Afghanistan, and the best mechanism for doing that is the Taliban insurgency. But at the same time, Iran has little interest in the return of a Taliban regime. When they were in power, the Taliban often persecuted the Hazara minority, who, like most Iranians, are Shiite, and whom Iran supports.