Forgetful Islamic terrorists have missed the opportunity to attack the US on September 11th for the ninth year in a row after refusing to accept the Gregorian calendar used by the Infidels of the West.
The Islamic calendar consists of 354 days, 10 days less than the Gregorian calendar so according to the Hijri date, today is 2 Shawwal 1431 A.H.
'Now you see how difficult it is to co-ordinate a terrorist attack on the same day every year' said Osama Bin Laden from his luxury penthouse cave overlooking the Helmand Province.
'I bloody try to remember to get one of my followers to hijack a plane and fly it into a famous American landmark every year, but my Hirji Pirelli Calendar featuring foxy ladies wearing nothing but an all enveloping burka doesn't have a September so I never bloody know what day September 11th falls on.'
Bin Laden's son, Osama Junior, has questioned his father's reason for 'forgetting' and believes the bearded one could be going soft in his old age.
'I bought him an Iphone App for his birthday last year that converts Islamic dates into Gregorian ones but he says it wipes all the names off his address book when he tries to open it.'
'I know he's lying because he sends dirty texts to his 15 wives almost every day so there's nothing wrong with his phone.'
'He just wants to live out his retirement tending goats and farming opium rather than having to duck out of the way of American missiles every five minutes.'