If this was a shoot-down event, you don’t want to disturb the crash site [with bulldozers] before a thorough investigation can be conducted. It follows Iranian claims the two black boxes – which contain data and cockpit communications from the plane and are meant to be indestructible – had been damaged.
CSI Tehran
Where are the "80 dead American terrorists" Iran said it killed in the missile attacks?More to the point... why is Tehran "tidying up" the crash site with heavy machinery?