[myprecious]

Q. why marshalls, who will pay?

A. Denial of access to airspace can be used to force countries to cooperate.

[myprecious]

Q. Examples?

times when info has been gathered is shared and may drive decision to put armed officials onboard.

[debg]

and tourists are clamoring for our cheap services and goods right about now...

[myprecious]

What response from Mexican authorities?

A. Last time, Mexico directed on forces to protect US interests and citizens. Mexico responded as neighbor and worked with US.