US food regulators had a busy few days this week. They were forced to deal with the latest salmonella scare to hit the industry, while firing off a series of warning letters to manufacturers - including Nestle and Schwan's - over alleged misleading nutrition labels. The debate over how food is labelled also re-emerged in the UK, with the FSA's latest proposals for a hybrid scheme, which angered the country's retailers. On the retail front, the Co-operative Group received a sales boost in the UK, while over the English Channel, Casino acknowledged problems at home and Dutch giant Ahold eyed expansion.