9/11 Terrorist Attacks (2001)
Tiananmen Square Massacre (1989)
Chernobyl Nuclear Disaster (1986)
SARS Outbreak (2003)
Rio de Janeiro Floods (2010)
Adelaide Hills Bushfires (2015)
Kumbh Mela Stampede (2013)
Plaza de Mayo Massacre (1955)
Zhanaozen Massacre (2011)
Desert Storm Dust Storms