Discuss:Should anyone be allowed to use any copyrighted work without permission and/or compensation from the copyright holder?

Should anyone be allowed to use any copyrighted work without permission and/or compensation from the copyright holder?
How do you know a work is copyrighted? If it is, how do you get permission to use it?
What are the ramifications of using a copyrighted work?
How can you protect your own work so it is protected?
Identify at least two places / locations / Internet sites that you can find videos that are either copyright free (i.e., anyone can use them for any reason) or you have rights to use (e.g., use for non-commercial purposes).