Not at all, but I don't trust Rudy Giuliani. There seems to be agreement that this administration lies in a new and blatant way. I want to stop taking their word for things across the board.

Part of that is not trusting their admissions of "guilt", the same way that I don't trust their admissions of "innocence".

They do sometimes tell the truth. Their animosity towards Muslims seems to be real, not a lie. There seems to be no other adequate explanation for the travel ban (the people who would push it as a rational security measure would also have been smarter about it) so I think this is a case where they can be believed.

I think the travel ban could serve any number of non-obvious political purposes. A show of power? A distraction from less unusual political changes? A way to get press (albeit negative)? A way to decrease overall immigration? Security theater?

Airline stewards want me to turn off my cellphone. I can't think of a good reason, but that doesn't mean I'll believe the reason they state, when it makes no sense.

The reason they usually do not tell you is that cell networks on the ground do not handle phones well that are visible in too many wide spread out cell towers.

If planes were in danger because of turned on phones they would check for them much more thoroughly and also check lugagge for turned on phones.