Censorship is self-contradictory. It had its role to consider but at the same time, it must think about the consequences of censoring media.
I feel that censorship is necessary as there will be negative influence by the free media. For example advertisements on drugs might influence teenagers to gain interest in sniffing glue. Shows which contains violence scenes might change a person's character for the worse. Thus, moral values will be tarnished. Religious information shown will offend many groups of people, resulting in chaos. In my opinion, censorship is able to protect general audience as well as national security. Censorship is able to prevent conflicts from happening.
However, censorship can be unnecessary too. Without censorship, audience can learn more as horizons broaden. Moreover, they deserve the right to know the truth of everything. Early exposure might not be a bad thing afterall. It can be used to educate the young and preventing accidents from happening due to ignorance. Censoring might cause people to be paranoid and sensitive on certain issues.

In conclusion, I feel that censorship is necessary as people will be able to get alot of negative messages from the media in which they might follow after it. Although there will be more learning without censorship, some things should still be taught through an adult's guidance such as sex.