The common denominator to all these attacks in multiple countries, those of allies (even happened in Washington DC) as well as those of adversaries, is that the

The common denominator to all these attacks in multiple countries, those of allies (even happened in Washington DC) as well as those of adversaries, is that they are Government employees. My belief is that these are workplace-injuries of some kind, and it's better for the Government to blame the problem on 'adversaries' rather than open itself up for millions of dollars in Workers' Compensation claims.