The threat of a nuclear disaster has greatly increased since the collapse of the Soviet Union, top Russian and U.S. experts meeting in Washington agreed.
Strong words came amid contrasting images of emergency workers and off-duty coal miners across sunflower fields searching for charred pieces of wreckage from the Boeing 777.
Hopefully the recent ceasefire agreement between the warring parties in South Sudan will halt that country's downward spiral into civil war.
In Japan and around the world, tens of thousands are marking one of the worst atrocities in modern history, the only time atomic weapons were ever used against human populations. They are vowing to never let it happen again.