As thousands of delegates from across China arrive in Beijing this week to participate in the annual parliamentary session, there is a barely perceptible shift in the mood in the capital. Though few ordinary Chinese pay much attention to goings-on inside the Great Hall of the People, the imposing 1950s modernist building that flanks the western edge of Tiananmen Square, the ripple effects of this week’s conclave can be felt across the city. Security is heightened. Extra uniformed personnel have been deployed to stand guard on Beijing’s bridges – lest anyone attempt a stunt inspired by Peng Lifa’s protest at...