Pilotless planes may raise concerns amongst civil and army aviation safety experts but that’s not restricting the US from brining as many as 100 new remote controlled aircrafts into operation. Not one or two, all four branches of the USA armed services deploy them for different causes. Even non army agencies use these pilotless planes for tasks like finding out lost hikers or illegal aliens, forest department uses the planes to fight forest fires, etc. Last in the news, Canada air force is to purchase pilot less aircrafts to help and protect their troops in Afghanistan. There are some serious concerns raised about these pilotless aerial vehicles. On April 2006 U.A.V., a 10,000-pound Predator crashed while undertaking surveillance work for the Customs and Border Patrol. No property was damaged nor any one got hurt, but its worth mentionable that the size of midesized corporate jet, the 10,000 plane while crashing actually missed a house by about 100 yards. Government has declared the incident happened for soma bla bla technical reasons (which engineers have worked upon soon) and chances of such incidents occurring next is less. Link