Chertoff – Out of Sync with Bush?

Homeland Security Michael Chertoff put the kibosh on a plan by an agency of the Mexican GOVERNMENT to provide MAPS of the Arizona desert to migrants who want to cross the border illegally into the US.
You read that right: the Mexican government was planning to distribute 70,000 maps of highways, rescue beacons and water tanks to encourage its own citizens to enter our country illegally.
They have since dropped the idea, fearing that anti-immigration groups here would use the maps for their own evil purposes, like keeping US citizens safe from unlicensed drivers who drive unregistered and uninsured cars, preventing non-taxpayers from using publicly-funded services, pissing on people’s lawns, driving down wages, etc.
Freaking unbelievable, whot?
As noted in this entry’s title, I’m wondering how Chertoff got away with voicing his objections. After all, isn’t the Bush Administration all about granting amnesty, encouraging the depression of wages and salaries to benefit their “Base”, and adding to the roles of Republican voters, with or without the help of the Diebold Corporation?