Activists try to disrupt start of G-20 summit, police react

HAMBURG, Germany — Anti-globalization activists set dozens of cars ablaze and tried to block leaders' delegations from entering the grounds of the Group of 20 summit Friday, the second day of protests as the meeting got underway in the German port city of Hamburg.Dozens of officers built moving lines in different parts of Hamburg and used water cannons to force away protesters from streets across the city. Some were physically moved for hundreds of meters (yards) from a protest sit-in in f