Ah, Robin, I see what you're on about now. The private flyers who use uncontrolled airspace. Not many of them in Iraq or Afghanistan!
Back to topic. Recurring midairs are unacceptable, yet they're being tolerated because the 'new' technology doesn't fit into the current deconfliction scheme. This has to change, but how? Making them join in with everyone else (SSR/IFF) is an obvious start, legal accountability for the operator is also going to have to be implemented. At least 5 collisions in 4 years and counting....