FWIW, arsonists are represented considerably more heavily among firefighters than in the general population.
The regime is doing a LOT more than just ax’ing an arsonist to join the fire brigade... the regime is providing matches and accelerant as well. Indeed, they are even assuring those whose house might burn that they should trust the arsonist as no danger.
There is no evidence that the trust Zarif seeks is warranted in any way. Iran operates globally through cells controlled by the Quds Force of the Islamic Revolutionary Guard Corps (IRGC), often backed by operatives of Hizbollah. During the nuclear negotiations, this network has not been reduced in size; it operates in some 30 countries and on five continents - Iranian-backed attacks have taken place in such diverse locations as Argentina, France, Austria, Bulgaria, Lebanon, Saudi Arabia, Iraq, India, Thailand and even the United States. Indeed, in October, 2011, the US uncovered a plot by an IRGC operative to recruit members of a Mexican drug cartel to conduct a mass casualty attack in Washington DC aimed at the Saudi Ambassador to the US. Since that time IRGC activity has only intensified.Thanks Dave346.
[and 85-90% of the world's Muslims are Sunni, IOW, Shiites kill twice as many per capita]