But as law enforcement learned about these underground channels they turned to other means.
Money smuggled in walls and roof of truck.
It was five times the amount seized in all of 2006 by mexican authorities in anti narcotic and money laundering operations.
For years they smuggled drugs through tunnels.
Officials said they worked past midnight to count the bills which were hidden inside walls suitcases and closets.
Updated 11 8 2008 6 46 00 pm et 2008 11 08t23 46 00 print.
Trucks and other vehicles stuffed with drugs in.
Wall liner panels also protect against a wide range of chemicals and are rustproof and mildew resistant.
The cash seized was mostly in u s.
In this undated photo contractor bob kitts and homeowner amanda reece pose with money found at reece s home in cleveland.
Steeliner transportation interior wall roof liner is a high strength fiberglass composite panel.
Panels provide great impact and abrasion resistance and are extremely resistant to moisture.
An incomplete cross border tunnel found stretching from mexico to near yuma arizona appears to be the most sophisticated tunnel in u s.