First proposal was to build a fence way back in 2005. Next was a plan to build a high tech virtual fence. After completing only 53 miles, looks like Homeland Security will end that effort after delays, failed technology and costs overruns at 12 times original estimates.
In November 2005, Homeland Security announced the launch of the Secure Border Initiative (SBI), a multiyear, multibillion-dollar program aimed at securing U.S. borders and reducing illegal immigration
COMING SOON: a new blue ribbon commission to study this issue.
Complete Article on the fence update.