What actions should one take if he/she is a student aware of several acts of plagiarism being committed?

First make sure that you have sufficient proof that plagiarism is being committed. A copy of the student’s work and the original would be best. Then turn the evidence over to the professor/teacher and the dean/principal. It’s cheating and the person in question should be punished as strictly as possible. But make sure that you have the proof before you go to the instructors- you don’t want to accuse someone of something like this without it.

If you don’t do anything, you should suffer the same consequences that the cheaters do. If it were my class, I’d fail them at the minimum.

I know it feels like you might be a tattle tale, but I think you need to tell. Everyone else is working very hard to write their own work. It is unfair for someone to copy, cheat, and do less work for the same grade.

At some schools failure to disclose an act of cheating can leave you as culpable as the cheater.

You already know the answer to this. Do what your conscience tells you is right.

doing the “Right” thing apposed as doing the most “Popular” thing would be best in should be in order.