Being able to read both Galileo's contention that the sun does not move and the church's condemnation of his theory.

Being able to read both the corporate press's arguments in favor of invading Iraq and independent voices critiquing those arguments.

Being able to, in short, inform myself of competing views on an issue.

As Richard Feynman said, "science is the belief in the ignorance of the experts."

If arguments are obviously wrong, they are easily refuted.

Censorship leads invariably to tyrrany, which is why the USA's bill of rights enshrined the right to free speech and free press as the first and most fundamental guaranteed right.

Freedom of speech truly is the eternally radical idea [1], it seems.

[1] https://www.thefire.org/what-is-the-eternally-radical-idea/