I think the technology sounds great. People may say that an unmanned aircraft would be too easy to intercept, but if they were being transported on the ground via car/ambulance it would be even easier to intercept the package/data being sent. Criminal groups who don't have the technology to intercept an aircraft won't be able to capture it, but if it was being transported on the ground they would most definitely have a shot at stealing the package/data. I'm doing a case-study on this for school, so if anyone else has any views that may help me please leave a comment. =-)