The 300 men filling out forms in the offices of an Iranian aid group were offered three choices: train for suicide attacks against US troops in Iraq, or train for suicide attacks against Israelis. Or train to assassinate British author Salman Rushdie.
It looked at first glance like a gathering on the fringes of a society divided between moderates who want better relations with the world and hard-line Muslim militants hostile toward the United States and Israel.
But the presence of two key figures a prominent Iranian lawmaker and a member of the countrys elite Revolutionary Guards lent the meeting more legitimacy, and a clear indication of at least tacit support from some within Irans government.
Since that inaugural June meeting in a room decorated with photos of Israeli soldiers funerals, the registration forms for volunteer suicide commandos have appeared on Tehrans streets and university campuses, with no sign Irans government is trying to stop the shadowy movement.
On November 12, the day Iranians traditionally hold pro-Palestinian protests, a spokesman for the Headquarters for Commemorating Martyrs of the Global Islamic Movement said the movement signed up at least 4,000 new volunteers.
Mohammad Ali Samadi, the spokesman, said the group has no ties to the government.
And Iranian Foreign Ministry spokesman Hamid Reza Asefi said recently that the groups campaign to sign up volunteers for suicide attacks had nothing to do with the ruling Islamic establishment.
That some people do such a thing is the result of their sentiments. It has nothing to do with the government and the system, Asefi said.
Deputy Interior Minister for Security Affairs Ali Asghar Ahmadi added such groups could operate as long as their ideas are limited to theory, but members would not be allowed to cross borders to fight.
Ahmadi did not say if the government had tried to crack down on the military style training the group claims to offer or whether officials believed any of its volunteers had crossed into Iraq or into Israel.
Yet despite the official disavowal of the group and some of its programmes, there are indications the suicide attack campaign has at least some legitimacy within the government.
The first meeting was held in the offices of the Martyrs Foundation, a semi-official organisation that helps the families of those killed in the 1980-88 Iran-Iraq war, or those killed fighting for the government on other fronts. It drew hard-line lawmaker Mahdi Kouchakzadeh and General Hossein Salami of the elite Revolutionary Guards.
This group spreads valuable ideas, Kouchakzadeh said.
At a time when the US is committing the crimes we see now, deprived nations have no weapon other than martyrdom. Its evident that Irans foreign policy makers have to take the dignified opinions of this group into consideration, said Kouchakzadeh, who also is a former member of the Revolutionary Guards.
In general, Iran portrays Israel as its main nemesis and backs anti-Israeli groups like Lebanons Hezbollah. It says it has no interest in promoting instability in Iraq and that it tries to block any infiltration into Iraq by insurgents while pleading that its porous borders are hard to police.
In 1998, the Iranian government declared it would not support a 1989 fatwa against Rushdie issued by Ayatollah Ruhollah Khomeini, founder of the 1979 Islamic Revolution. But the government also said only the person who issued the edict could rescind it.
Khomeini, angered at Rushdies portrayal of the Islamic prophet Muhammad in The Satanic Verses, died in June 1989.
Samadi described the movement as independent, with no ties to groups like al-Qaida.
Despite its very public canvassing for volunteers, the group can be secretive. Samadi agreed only reluctantly to an interview, and insisted it be held in the basement of an unmarked building in central Tehran not the Martyrs Foundation offices.
Samadi refused to identify any of his volunteers or the wealthy sympathisers who he says underwrote their efforts. Asked to describe the training programmes, he would say only that classes were sometimes held in open spaces outside cities, but more often inside, away from prying eyes.
Samadi claimed 30,000 volunteers have signed up, and of those 20,000 have been chosen for training, and he said volunteers had already carried out suicide operations against military targets inside Israel.
But he said discussing attacks against US troops in Iraq will cause problems for the countrys foreign policy. It will have grave consequences for our country and our group. Its confidential.
He said as devoted Muslims, members of his group were simply fulfilling their religious obligations as laid out by Khomeini.
In his widely published book of religious directives, Khomeini says: If an enemy invades Muslim countries and borders, its an obligation for all Muslims to defend through any possible means: sacrificing life and properties.
With this religious verdict, we dont need anybodys permission to fight an enemy that has occupied Muslim lands, Samadi said.