[Ajedi32]

The same way you tell the difference between commercial scheduled airline flights incoming kamikaze pilots?

[XR0CSWV3h3kZWg]

Assume that there aren't commercial scheduled airline flights going straight through a warzone?

[jacquesm]

https://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_17

[Ajedi32]

Assume there aren't commercial scheduled spaceline flights taking off from nuclear missile silos.

[XR0CSWV3h3kZWg]

I haven't heard of missile defense systems that are capable of determining the origin of an ICBM while deciding if it should try and take it out.

[jccooper]

Infrared boost phase detectors on satellites have been around since the 60s. The US and Russian detection systems, at least, certainly know the origin of any ICBMs. There's not many parties that don't have that data and also have counter-measures.