Last Words, a photographic exhibit by Tibetan artists at the Dhaka Art Summit, one of Bangladesh’s biggest art shows, has been covered with white sheets. The Chinese embassy in Dhaka said it was “offended” by the artwork. The exhibition which is the work of Indian filmmaker Ritu Sarin and her husband Tenzing Sonam, a Tibetan living in exile, and is part of a larger multimedia installation on Tibetan self-immolations