You are correct. And in addition there is still this:

"Mexican drug cartels literally do control parts of Arizona," he said. "They literally have scouts on the high points in the mountains and in the hills and they literally control movement. They have radios, they have optics, they have night-vision goggles as good as anything law enforcement has.

"This is going on here in Arizona," he said. "This is 70 to 80 miles from the border - 30 miles from the fifth-largest city in the United States."

He said he asked the Obama administration for 3,000 National Guard soldiers to patrol the border, but what he got were 15 signs.

http://www.washingtontimes.com/news/2010/aug/31/signs-in-arizona-warn-of-smuggler-dangers/