Tell me how you keep track of an invisible (that is, transparent to transmission of light) gas cloud.
BTW, you must also look at the altitudes ~ earlier explosions tossed material far higher and away from aircraft. This time the explosions were pumping it into prime flying altitudes.
Frankly, none of the airlines were prepared to provide the customers with all the information they needed to decide if they wanted to board the planes. Fur Shur I'm never getting on a German airline again. Those guys are crazy!
BTW, you must also look at the altitudes ~ earlier explosions tossed material far higher and away from aircraft. This time the explosions were pumping it into prime flying altitudes.
My FRiend, you need to go the a thread you know something about.