AP - As they scrambled recently to trace the source of a salmonella outbreak that has sickened hundreds around the country, investigators from the Centers for Disease Control and Prevention successfully used a new tool for the first time — the shopper cards that millions of Americans swipe every time they buy groceries.

AP - Many law enforcement officers called up to fight in Iraq and Afghanistan are finding it difficult to readjust to their jobs once home, bringing back heightened survival instincts that may make them quicker to use force and showing less patience toward the people they serve.