The fall of Kabul merely adds to the woes of a world that is increasingly worrying about deadly nuclear weapons falling into the hands of desperadoes.
There are now confirmed reports of at least 10 Pakistani scientists helping the Taliban and Osama bin Laden's al-Qaeda to set up nuclear facilities in Afghanistan.
Although Islamabad detained some of these scientists -- among them Sultan Bashiruddin Mahmood, considered to be the father of Pakistan's nuclear program -- two grave concerns remain.