The Air Force is expanding its search for cheap, disposable intelligence, surveillance and reconnaissance platforms to include low-cost sensors, according to a request for information issued last week . As the service looks at ways to leverage small, unmanned aerial vehicles in denied environments where larger aircraft would be more vulnerable -- and more expensive to replace -- their ISR equipment needs to shrink as well. The RFI posted Dec. 16 to the Federal Business Opportunities website invites companies to...