biological and chemical weapons

Pentagon to look into past tick research

The US House of Representatives has ordered an investigation into whether the Department of Defense experimented with ticks and other insects as biological weapons.

US warns Syrian regime following allegations of chemical weapons use

The US State Department issued a warning to the government of Bashar al-Assad in Syria on Tuesday, saying the US is closely watching the regime's military operations against a rebel enclave in northwest Syria and is looking into allegations that Assad's troops have used chemical weapons in recent days.

UK intelligence officials: Putin approved Skripal attack

The UK has assessed that the brazenness of the attacks that killed one Briton and sickened a former Russian spy and his daughter — including the amount of nerve agent used — point to approval by Russian President Vladimir Putin himself, two officials familiar with the matter told CNN.