An active Iranian diplomat has been convicted of providing a bomb to set off at a rally in France.

That was undeniably state sponsorship of terrorism. The government of Iran must commit to preventing any repetition.

The world must keep this matter separate from the non-nuclear deal, because that is a more important issue. Sanctions that block medicine, such as the US is applying, must not be used to punish Iranian terrorism, because the sanctions are worse than a bomb.

What other way is there to apply pressure? Perhaps seizing an Iranian oil tanker?