Gunboats patrol Rio Grande River

Published On: Aug 26 2012 10:36:29 PM CDT   Updated On: Aug 26 2012 10:44:19 PM CDT
gunboat patrol texas highway patrol

Aug. 26, 2012: The Texas Department of Public Safety has added a new weapon to deal with increasingly confrontational drug smugglers trying to out run and out gun state troopers. Robert Arnold reports.