communication is an implied right in the constitution. In late August 2020, Kevin Yeung said that "separation of powers" should be removed from Liberal Studies textbooks. This statement had a snowball effect, as a day later, Carrie Lam expressed "full support" for that opinion. A week later, both the Liaison Office and Hong Kong and Macao Affairs Office released statements, saying that separation of powers does not exist in Hong Kong. In addition, Teresa Cheng reiterated the position and said that separation of powers "has no place" in Hong Kong. In October 2020, Yeung announced that details of certain investigations into teachers would be published online to inform the public and educators of what the government deems unacceptable. Additionally, Yeung said that if Hong Kong independence is discussed in schools, then teachers must make the students conclude that the idea is not feasible. In November 2020, Yeung said that his department would seek legal authority for more extensive punishments against teachers, including the suspension of their teaching licenses, the withholding or deduction of their salaries, and other penalties. In regards to classroom material that may be "problematic", such as discussions on Hong Kong independence, Yeung said that teachers "should report the matter to their supervisors so amendments could be made", and that if the teachers "stay silent, they should be held responsible". Also in November 2020, Yeung announced changes to the liberal studies curriculum in Hong Kong, including the vetting of all textbooks to remove material which pro-Beijing figures have said were biased against the government. Some educators noted that some of Yeung's changes, such as moving the grading system to pass/fail, ran contrary to recommendations made by a task force that had reviewed the subject for three years. In December 2020, Yeung said that ongoing current affairs should not be taught in liberal studies classrooms. In February 2021, Yeung announced changes to the education system, and said that schools and teachers that fail to report breaches of the National Security Law to the police could be held responsible. Notices to teachers explained that teachers should educate students as young as 6 years old about the national security law. Yeung also reiterated that schools are not a place to express political views and said that the new rules would not impact rights or freedom of speech for students. Also, Yeung said that even if pupils were outside of campus and