Fences Work

Just ask the Israelis. From Slate:

As America debates the question of erecting a fence along the U.S.-Mexico border, two precedents are mentioned by proponents and opponents: the Berlin wall and the Israeli barrier. The former is usually the negative example, the latter the more practical illustration. Most calculations of the projected cost of a U.S. fence cite the Israeli model: "[B]ased on the price of the Israeli security barrier," the National Journal estimated that 2,000 miles of fence will cost the United States $6.4 billion...

The number of fatalities from terror attacks within Israel dropped from more than 130 in 2003 to fewer than 25 in 2005. The number of bombings fell from dozens to fewer than 10.

Sounds good to me. When do we start?