They were doing their jobs and listening in on Russians who they suspected of espionage. The problem is the Russians were communicating with Trump's...
Iran is very mountainous. It is difficult to fight against a mountainous country when the inhabitants know where the caves and the hiding places are....
Iran had to retaliate after Israels' attack of the Irani embassy. That is how politics works. The attack seems to be mostly show. It was telegraphed...
Trump knows nothing and does not care to. He thinks he can fake it and fool the Rubes. It seems to work on them. People who know things are appalled...