The Pentagon's defence scientists want to create an army of cyber-insects that can be remotely controlled to check out explosives and send transmissions. The idea is to insert micro-systems at the pupa stage, when the insects can integrate them into their body, so they can be remotely controlled later.
More on BBC but Lynda Hurst already wrote in the Toronto Star on 03 April, 2006:
"DARPA's current big idea is to implant tiny microsystems into insects at the pupa stage of their development, when they can be "integrated" into their internal organs.
A step or three later, they could be turned into miniature unmanned vehicles for use on military missions "requiring unobtrusive entry into areas inaccessible or hostile to humans. Osama Bin Laden's cave, say."