Last I heard (here), some prof is developing a sniffer for IEDs. Great idea but the range of detection was ~3-5 meters. That sucks.
Thinking cap on; put the package on a forward deployed remote controlled toy, triggered to stop and warn.
Don't want any more cheap shots.
That will work good in an laboratory environment but if there as been any fires or shooting in the area, it will go off all the time. The best way to get rid of bombs is get rid of the bombers. That always works. The best way to get rid of them is change or break their will or kill them. What the problem is, is we are killing some of the people we need to rebuild the country with. It is going to take a while, but if we can convince them that life is great and everybody can have a great life, then the dying will stop. Even if we have to put in a Disney Land or something simular to win the hearts and minds it will be worth it.