Security has been tightened in Lhasa ahead of HH the Dalai Lama’s birthday in two months to head off any expressions of allegiance by Tibetans to their spiritual leader. Security checkpoints have been set up on all street corners and Tibetans are subject to random searches and phone checks. Drones are being used to monitor Tibetans’ movements. Tibetans regularly defy the ban on observing significant cultural and historical days.