Morning Briefing

World leaders on Tuesday "pledged to take wide-ranging action to prevent millions of deaths from cancer, diabetes, and heart and lung disease by tackling the key causes -- smoking, excessive drinking, lack of exercise and unhealthy diets dominated by fast food," but the "declaration approved at the first-ever General Assembly meeting on chronic diseases which ended Tuesday left unanswered the question of coordinating an international response to what the leaders called "a challenge of epidemic proportions," the Associated Press/CBS News reports.