like many tourist zones, tallinn's is a commercial gauntlet.there's a hokey torture museum, strolling russian dolls, medieval theme restaurants complete with touts, and enthusiastic hawkers of ye olde taste treats. woman: [ laughs ] steves: but just a couple blocks away is, for me, the real attraction of tallinn -- workaday locals enjoying real freedom and better economic times. still-ramshackle courtyards host inviting cafés. bistros serve organic cuisine in a chic patina of old-world-meets new. and just outside the walls, it seems there's no tourism at all. under towering ramparts, the former moat is now a park, perfect for a warm afternoon stroll. welcome to "newsline." it is tuesday march 1st. i'm catherine kobayashi in tokyo. >>> al shabaab has claimed responsibility for a deadly attack in somalia. its members set off two bombs at busy locations. they killed more than 20 people, and injured more than 40. the explosions happened northwest of the capital mogadishu. a car bomb exploded outside a restaurant. it was followed by a suicide bomb n