From Reuters:
KABUL (Reuters) - Islamist militancy is spreading north from Afghanistan into Central Asia, threatening to disrupt NATO supply lines snaking through the former Soviet region, Russia's ambassador to Afghanistan said.
A string of clashes between troops and militants in Central Asia this year has prompted talk of Islamist fighters infiltrating the volatile and impoverished region used by the United States to ship supplies to its troops in Afghanistan.
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My Comment: Poverty, mixed with repression, foreign interference, and a history of Islamic militancy .... yup .... this is a prime area for an insurgency to start.
When the Soviet Union was formed, the Communists spent almost a decade trying to quell the Islamic militants in this part of Asia. I guess it was only a temporary measure.