This Week's Top News Stories on YouTube--Horrible deja vu for Virginia Tech, Mass sectarian killing in Afghanistan, and Russians protest election

Everyday on the CitizenTube Channel (and @CitizenTube on Twitter), along with our curation partners @storyful, we look at how the top news stories are covered on YouTube. Every week we'll post a weekly recap of the top news stories of the week:

• We were shocked by the shooting on the Virginia Tech campus that left people with a feeling of deja vu in which a police officer was killed and another person was found dead.
• We witnessed the first sectarian attack in Afghanistan in recent memory that left at least 55 Shi'ite Muslims dead and tensions between Afghanistan and Pakistan strained.
• We observed thousands of angry Russians take to the streets in unprecedented protests after reports of fraud and irregularities in parliamentary elections.
• We saw embattled former Penn State coach Jerry Sandusky get arrested and jailed on new charges of child molestation.
• We followed Herman Cain's announcement he was "suspending" his campaign and a controversial Rick Perry ad on the US campaign trail.
• We watched Syrian president Bashar al-Asad speak to America's ABC News and deny accusations that the government is involved in killing thousands of protesters as more violence raged on.
• We monitored opposition protests around the world as people waiting to hear election results in the Democratic Republic of Congo grew frustrated at what they fear is a sham vote.
• We took in the early winter snow storm across parts of Texas and New Mexico as locals had some fun with the unusual weather.
• And finally, we gazed at images of NASA's incredible discovery of an Earth-like planet with the potential of containing life 600 light years away.