SRL for [that an even bigger problem could be protectionism from the U.S. , where some politicians oppose what they consider Japanese efforts to use maquiladoras to crack the U.S. market through the back door]: But Mr. Ruffo frets [that an even bigger problem could be protectionism from the U.S. , where some politicians oppose what they consider Japanese efforts to use maquiladoras to crack the U.S. market through the back door] .
<unk>