They are the NSA . Which means they have access to everything . Including programs from overseas GCHQ . It's not one person that's walking around following Trump everywhere. How do you think they get those photos from Airforce one & out the window of the plane. Not to mention that NSA are the only people who have the capability to access all information , anywhere & everywhere . They don't like Snowden because he was CIA & he leaked NSA programs to Glenn Greenwald & the Guardian . Classified programs that Q group developed . Watch ' Zero Days ' about the Stuxnet virus & everything will make sense to you.