US food policy is coming under criticism in Rome at the UN emergency summit on food. The Los Angeles Times reports Bush administration officials have found themselves on the defensive on a wide range of policies, from biofuel production to genetic engineering to farm subsidies. Delegates have clashed over how much blame can be assigned to biofuels such as ethanol for the meteoric rise in food prices. Many nations and aid agencies contend that too much food is ending up in fuel tanks and not on dinner tables, deepening a threat of global starvation.