Arizona Gov. Jan Brewer has signed a bill allowing Arizona to build a "virtual fence" along the Arizona-Mexico border but providing no money to do so.
House Bill 2462 was signed Wednesday and would allow the state to place high-technology radar and video sensors on 300 towers along 375 miles of the border to monitor human and drug-smuggling activity. The sensors would send signals to a publicly accessible site and could also be monitored by law enforcement agencies.
The proposal from Sen. Bob Worsley of Mesa originally had a $30 million appropriation but it now only says a virtual fence could be built.
The federal government tried to construct a "virtual fence" along the border in 2006 but abandoned the project in 2011 after spending more than $1 billion.