US turns to Software to find Laden

Key to the search is "accumulated humint," or human intelligence, a media report said, adding the software used in the search helps piece together data on criminal and terror networks.

Quoting officials, Newsweek magazine said an increasing number of "data points" reports of sightings have created an ever-clearer picture of bin Laden's area of operation as he appears to shuttle between Pakistan and Afghanistan.

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Now they've focused that to the point where they have been able to send in Predator unmanned aerial vehicles to search for him.