big, and good;

A row between the US and Mexico over a plan by the latter to ban imports of genetically modified corn by 2024 deepened on Monday.

US Agriculture Secretary Tom Vilsack warned Mexico's president that the US would be forced to take legal action if no "acceptable resolution" was found.

Mexico argues that genetically modified seeds are a threat to its own ancient native corn varieties.

But on Tuesday, Mexico's president said he would seek a deal with the US.

A ban would have "significant impact" on US-Mexico trade, Mr Vilsack had earlier warned.

Mexico is the second-largest importer of corn in the world after China, and much of the corn it buys comes from the United States.

But this ban could result in Mexico halving its US imports of yellow corn, a Mexican minister told news agency Reuters last month..........more.........