“For special security reasons”. Is a “special military operation “ following? Maybe somebody in Mexico said something mean about the president.

But seriously, is this normal without any explanation? The cost must be enormous.

it's in general highly abnormal

which kinda makes it normal to not have a explanation

because anything abnormal enough to cause something like that is also likely something kept secret until it's done

(Like large scale operations against drug cartel, "special military operation", or a large scale ICE operation which shouldn't be able to cause this but does because the current administration is uh, what it is.)