The latest small bomb to explode in Istanbul detonated in a trash bin, blowing shards of plate glass into the faces and exposed limbs of shoppers crowded into the narrow passageways of a teeming marketplace in the fading light of a warm Sunday evening. No witnesses saw the percussion grenade being placed in the bin, and no group asserted responsibility for the attack that injured 31. But within minutes of the explosion, the crowd milling angrily amid the damage decided this was the work of the Kurdistan Workers’ Party, a shadowy organization of ethnic Kurdish radicals known by the initials PKK. Full Story