"It has been one year since the U.S. Border Patrol built its floating fence in the Imperial Sand Dunes. Stretching 11 miles long and 15 feet high, its steel metal beams separate Mexico from the United States. Designed to sit on top of the sand and have sand blow through it instead of pile up next to it, agents say it has been doing its job."
http://www.kyma.com/slp.php?idN=2948
Floating Fence Holding Strong
Moderator: Jim_b