How is this different?

Question

On January 3rd armed gunmen crossed the border and attacked a national guard unit (see story here: http://www.azcentral.com/12news/news/articles/borderstory0104-CR.html - or go to the Drudge Report and check it out).
My question is:
How is this any different in principle than the attacks on 9-11? And what should we do?

Answer 1

Looks to be a major difference, the article states the guardsmen refused to say whether any shots were fired, they couldn't tell how many attackers there were, and did say that the attackers quickly retreated back across the border into Mexico - basically the attackers hurt no one and didn't cause any damage to property and may have be surprised to be discovered along that known 120 mile drug corridor. On 9/11 the attackers intently used a well-planned strategy to caused many deaths and tremendous damage to property.
The guardsman should be sufficient in numbers and well-armed to defend themselves against drug-traffickers but not use extreme force against illegals simply trying to cross the border.