There could be a simple, reasonable explanation for this: US and Mexican governments want to avoid a confrontation and a possible deadly shootout between Mexican drug smugglers and the Minutemen. Why there is still so much drug smuggling activity in Mexico is another issue.
Listen up!Do you really believe they're worried about the welfare of American citizens after all that has come down (and I count 9/11 in there too)?
What exactly are you suggesting that Bush knew about the WTC?
Would you care to elaborate on your claim that "they" aren't concerned about the welfare of American citizens?