While I strongly oppose the tactic of threatening legal action against someone aggregating legally acquired information, I don't think it'd be unreasonable for

While I strongly oppose the tactic of threatening legal action against someone aggregating legally acquired information, I don't think it'd be unreasonable for Swift and others to lobby for an aircraft registration system that improved owner privacy without compromising safety, and would even support such measures, so long as implementation costs are borne by the owners in question.