Currently the US government forbids commercial use of drones to collect aerial imagery. The FAA is supposedly reviewing this to determine what sorts of restrictions are needed to allow this to happen while minimizing threats to privacy. From the Denver Post:
Last year, Congress mandated that the Federal Aviation Administration
create a plan for the safe integration of unmanned aerial vehicles
into the national airspace. Those regulations should be complete by
2015, and the agency expects a commercial boom — as many as 30,000
drones airborne in the U.S. by 2020. But public fears about police
spying could stall the technologically advanced industry eager to be
unleashed.
What countries currently allow commercial use of drones to collect aerial imagery?
In these countries, have there been problems with invasion of privacy?
Update
The influential head of Google, Eric Schmidt, has called for civilian
drone technology to be regulated, warning about privacy and security
concerns. – BBC News
Best Answer
UK permits 192 Private Companies [eg EDF], Government Agencies including Police and even the British Broadcasting Corporation [BBC]
Full List can be viewed here:
http://www.guardian.co.uk/world/2013/jan/25/who-can-fly-drones-uk-airspace