There are concerns that there are security risks with this new software. Mao wants to say that these risks are intended so Public Security Bureau can better monitor every user in China to help maintain harmony and socialism with Chinese characteristics.
There are also concerns that Green Dam is pirated code. Mao wants to point out that China doesn't have pirates. We send many navies to Africa to fight pirates from stealing our code. Besides, the computer was invented in China in 1643, and therefore all computer codes are belong to us.