Berlin Attack: Manhunt For Tunisian Suspect

Efforts to catch a Tunisian man are underway across Europe. Anis Amri -- a failed asylum-seeker with known links to Islamist networks-- has been named as a suspect in the Berlin Christmas market attack.

Scientists believe that the El Niño weather phenomenon may have been instrumental in the spread of the Zika virus in the Americas, Europe and Asia.

A study says that a measure to curb violence from conflict minerals in the Democratic Republic of Congo has prompted militias to expand their looting.