Angst and deep pockets show state of art market in Basel Hundreds of suitcases hang eerily from the ceiling, old publications depict colonial scenes of dark "savages" committing horrific acts of violence, and an anti-protestor gun blasts into life... with rounds of birdsong. A common theme -- of angst at a world in political turmoil, beset by a migration crisis and dread of terrorism -- unites many of the works at this year's Art Basel, the world's biggest contemporary art fair. IMAGES AND SOUNDBITES