used by drug gangs. the suspects got away. drug wars there are turning the place into the world s deadliest city. more than 2,000 people killed there this year alone. a so-called virtual border fence. government planning to scrap the program. officials say the fence project has been plagued with problems, many due to shoddy oversight. what has been designed to bolster security along the border now only stretches some 53 miles. for folks living near these virtual guards, we have this report from k can kaz in arizona. the towers rise up just north