with fresh lettuce, herbs, finely sliced radishes, and tomatoes. and finally, tarator is added. it's a thick sauce made of yogurt, garlic, cucumbers, and nuts. just fold it over, and it's ready to eat. >> all lebanese people love this food. we could eat it from morning to night. most of the customers are manual workers. they're people who do physical labor, like the kind of work you do at construction sites. chickpeas give your body strength and energy. >> so, if you're feeling sluggish, head to beirut. >> asia's mekong river provides for some 60 million people as it tibet to a broad river traversing six countries. it holds large stocks of fish and is flanked by fertile farmland. much of this natural abundance no longer has a place in the new plans several countries have for their stretch of the river. laos wants to harness the mekong to produce hydro-electricity and secure steady water supplies. the world wide fund for nature has recently described plans for the xayaburi dam as one of the most devastating dam projects in the world. our reporter traveled downstream and looked fo