Minnesota farmers are paying close attention to a trade dispute spurred by European Union restrictions on genetically modified, or "GM" crops. The EU placed restrictions on GM crops in 1998, citing a need to protect consumers. They've banned certain varieties of GM corn and just this year, required labelling of GM food. US trade officials say the restrictions are illegal protectionism. The US wants the World Trade Organization to intervene. Minnesota Public Radio's Rob Schmitz reports.