Japan and South Korea Bar Imports of U.S. Wheat By Ben Werschkul, Erica Berenstein, Pedro Rafael Rosado, Alyssa Kim, Kriston Lewis, Abe Sater and Robin Lindsay David McNew/Getty Images Uneven Outcry Over G.M.O. Foods: Genetically altered wheat was found in Oregon, and The Times's Michael Moss discusses why engineered food has long elicited criticism overseas but is just now growing in the United States.