Stock market today: World shares retreat, though China stocks are lifted by new property measuresCouples' therapist reveals the 10 signs you're in a healthy relationshipLawyers discuss role classified documents may play in bribery case against US Rep Cuellar of Texas8 EU members say conditions in Syria should be reassessed to allow voluntary refugee returnsThat's ONE way to hitch a ride! Moment teenager clings onto the back of a London doubleAP Week in Pictures: Europe and AfricaHow just one horrible moment in your past could cause ALZHEIMER'S, according to new studyOregon man convicted of sexually abusing 2 teen girls he met online gets 12 1/2 years in prisonKey Boeing supplier Spirit AeroSystems is laying off 450 after production of troubled 737s slowsGlobal obesity deaths rise by 50 percent since 2000, major report shows