They were handing out the photocopies by the thousand under the plane trees in the centre of the boulevard, single sheets of paper grabbed by the opposition supporters who are now wearing black for the 15 Iranians who have been killed in Tehran – who knows how many more in the rest of the country? – since the election results gave Mahmoud Ahmadinejad more than 24 million votes and a return to the presidency. But for the tens of thousands marking their fifth day of protests yesterday – and for their election campaign hero, Mirhossein Mousavi, who officially picked up just 13 million votes – those photocopies were irradiated.