Question?

As u probably know i’m goin to Vegas with a short stop at Newark on the way next wednesday.
I know that there are no viewing facillaties at all at the two airports above, so as a result can i only get pics of aircraft landing or departing outside the airport boundry? i’ve been looking at pics from the two airports on a.net and they are all the same just landing and departing planes.
So are there glass areas in the departure or arrival areas for pics on the ground? I’m just not sure what is advisable and what isnt?
I’m fully aware of the high sercurity climate in the USA at the moment so havnt really got my hopes for a variety of pics.
Any help is appriciated. Thanks 🙂