Censorship
Moral censorship: It is thought that certain facts may be inappropriate for the audience. There are many countries that limit who may see pornography. Additionally, it may be forbidden to show or write about certain forms of pornography, such as child pornography. Obscene words may be forbidden. Since about 1960 pressure groups have tried to stop the use of some words in favour of others. This has happened especially with words that describe race and gender.