Originally Posted by
C441
I would have thought given the acrimony between Iran and the US at the minute that all sorts of surveillance data would available to the US that would have quickly indicated a rocket/missile launch in Iran. Even a quick event such as this would not have gone unnoticed I would have thought thus, unless the US is sitting on it's hands (data), they would quickly have confirmed or discounted the missile theory.
The US appear to be willing to let things die down - hence Trump's "standing down" remark. If they have evidence it was a rocket/missile then saying so now could re-ignite the tension. The evidence could still come out in due course as the investigation progresses.
If it wasn't a rocket/missile then the US have nothing to gain by saying so at the moment. The truth will come out in the investigation, but in the meantime there is no harm to the US position of leaving the cause of the crash as an open question, especially whilst there is speculation of an Iranian own goal.
And possibly the US wouldn't want to reveal exactly what their capabilites are at the moment when it relates to looking at things going on inside Iran.