This is pretty shocking news, at least to me. I think of national parks as the height of the best America has to offer. Preserving nature, beauty, environment. Promoting good health with outdoor recreation and hiking and just scenic tours. This is in large part why I'm very much in favor of the proposal to create a national marine monument/park/sanctuary in the CNMI's northern waters.
So imagine America's national parks being used as the agriculatural base for Mexican drug cartels. Read here about how they've recently found $1 billion worth of marijuana farming in Sequoia National Park-with creeks dammed for gravity driven irrigation and drip lines!
There are always those willing to abuse our environment and take Mother Nature in a new direction. At least the feds are trying to stop it, fairly effectively this times, it seems.