WASHINGTON (AP) -- Patients on some popular antidepressants should be closely monitored for warning signs of suicide, the government warned Monday in asking the makers of 10 drugs to add the caution to their labels. Although the Food and Drug Administration's investigation into the possible suicide connection initially focused on children given the drugs, its warning is aimed at both adult and pediatric use of the pills to alleviate depression. It isn't clear yet that the drugs actually do lead to suicide, the FDA stressed. After all, depression itself can lead to suicide. But until that is settled, advisers to...