Don’t buy off on the Posse Comitatus lie. The military CAN LEGALLY AND SHOULD defend our border. They have in the past. The US BP was formed in 1924 so who was on the border before then? The US ARMY!
I completely agree.
Those who invoke Posse Comitatus as a reason not to defend our border do so because they're looking for an excuse not to defend the border at all. Their claims are based on a complete distortion of what Posse Comitatus means (i.e. not using the military as a police force). It's just as specious an argument as the idiotic refrain we keep on hearing about illegal immigrants: "Well, we can't deport them all [so why bother deporting any of them]."