1) The RC-135 has changed its unique transponder number to 730000 (hex), an Iranian assigned code. So, the USAF is impersonating an Iranian plane.
Nope, the official investigation debunked that.
The UK, US, and a host of Baltic countries do reconnaissance near Kaliningrad daily. They frequently/always have their transponder on, and correctly display who/what they are.
Proof? 4hrs ago:
Disguising planes and turning off transponders does not communicate intentions clearly to Iran, unless that intention is war.