Buddhist monks and believers attend a requiem mass at the Non Nuoc pagoda in Soc Son mountain, 64 km (40 miles) north of Hanoi, April 20, 2007. Internationally renowned Zen monk Thich Nhat Hanh on Friday led larger-than-expected crowds in a ceremony intended to heal wounds of the Vietnam war that ended 32 years ago this month. REUTERS/Kham (VIETNAM)