section_path: Escalation of the protests/Surveillance of protesters
section_name: Surveillance of protesters
paragraph_text: Surveillance of protesters
  
  Student leaders were put under close surveillance by the authorities; traffic cameras were used to perform surveillance on the square; and nearby restaurants, and wherever students gathered, were wiretapped. This surveillance led to the identification, capture, and punishment of protest participants. After the massacre, the government did thorough interrogations at work units, institutions, and schools to identify who had been at the protest.
  
  Student leaders were put under close surveillance by the authorities; traffic cameras were used to perform surveillance on the square; and nearby restaurants, and wherever students gathered, were wiretapped. This surveillance led to the identification, capture, and punishment of protest participants. After the massacre, the government did thorough interrogations at work units, institutions, and schools to identify who had been at the protest.