Special counsel John Durham's prosecutors laid out their case against Hillary Clinton campaign lawyer Michael Sussmann during opening statements Tuesday, accusing him of scheming "to inject the FBI into a presidential election" by peddling a tip about former President Donald Trump's Russian ties to the FBI's top lawyer in 2016.

President Joe Biden and first lady Jill Biden visited the memorial site for a mass shooting in which 10 people were killed in an act of violent racism, a devastating reminder to the President of challenges he ran to address.

Key lawmakers warned at a House hearing on Tuesday that unidentified aerial phenomena -- popularly known as UFOs -- must be investigated and taken seriously as a potential threat to national security.

Researchers believe the tooth belonged to a young female who lived at least 130,000 years ago and was likely a Denisovan -- an enigmatic group of early humans first identified in 2010.