The BBC creates excellent one-to-three minute video “news explainers” about current events.
Here’s an example:
You can find them in one of three locations (depending on what your school’s content filter blocks):
The Explainers section on the BBC site itself appears to be the one updated most frequently.
The BBC has some of them on their Vimeo account.
They have a Playlist on YouTube.
I’m adding this info to The Best Online “Explainer” Tools For Current Events, and also took the opportunity to revise and update that entire list.