A Swiss village may have to be evacuated for 10 years, after authorities decided a huge Second World War weapons store nearby needed to be removed
Russian President Vladimir Putin said earlier this week that the country is leading the world with an entire new class of weapons.
The UK, France, Italy, and Germany were Europe's biggest arms sellers last year but remain behind Russia and the US.
Explosive discovery: bombs, grenades and shells are sleeping at the bottom of Lake Geneva
The three children reeled out ammunition and bullet fragments from the pond by using a strong magnet, local police said in a statement.
Spoiler alert: It's not to kill aliens.
Britain's National Crime Agency said the find is believed to be "the largest seizure of lethal purpose weapons at a UK port."
The grenade was discovered in a shipment of French potatoes imported to a Hong Kong crisp factory, and detonated by police.
Putin fired multiple shots from the SVCh-308 rifle at targets 600 metres away.
Campaigners say killer robots and other autonomous weapons systems should be banned before it’s too late.