How is freedom of expression understood and practiced in different countries?

In general, the First Amendment guarantees the right to express ideas and information. On a basic level, it means that people can express an opinion (even an unpopular or unsavory one) without fear of government censorship. It protects all forms of communication, from speeches to art and other media

Explanation:

Nonetheless, the degree to which the right is upheld in practice varies greatly from one nation to another. In many nations, particularly those with

Explanation:

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.