Fears grow that extremists are ready to cross another threshold of terror Evidence gathered in Iraq and Afghanistan lends credence to claims that radical Islamic groups are dabbling in lethal toxins BEIRUT: A few days ago, Japanese prosecutors demanded the death sentence for the guru of the Aum Shinrikyo (Supreme Truth) doomsday cult, Shoko Asahara, for masterminding the sarin gas attack on Tokyo’s subway system on March 20, 1995. Twelve people were killed and 2,500 sickened. A year earlier, sect activists had released sarin in a residential neighborhood in the Nagano Mountains, killing seven people. Those atrocities crossed a moral...