I agree. While wearing that uniform, they are representing the Mexican government. This should be a serious diplomatic issue, but the US government is trying to obfuscate it.
The question is, what is it going to take for Washington to take this issue seriously? The massacre of a group of American citizens? ( oh, wait. We had Waco, which was government sanctioned ).
And if we catch them out of unifrom, they should be shot as spies on the spot.
This is not tricky at all. If they are operating with the approval of corrupt government officials they will lie about it. Either way you will get the same answer.
The solution is quite simple. Be they civilian, and or army when they cross the border armed it is a military or para military invasion into our sovereign land. We should kill them the most efficient and economical way we can. We do not need a fence on the border except near the major crossing points. The rest of the border should be a well marked and sign posted mine field with a 500 meter wide free fire zone.
Before someone flames me for being and racist I would like to add my wonderful wife is from Mexico and I have great compassion for the people of Mexico. We need a rational policy of controlled immigration.