The US authorities are worried that Syria continues to develop new types of chemical weapons. To prevent its spread outside the country, Washington reserves the right to use military force.
An anonymous White house source told Reuters that forces loyal to Bashar al-Assad, continues in small amounts to use chemical weapons. In the latter cases was recorded use of chlorine, which is easy enough to buy, as well as sarin.
Speaking about the development of new types of chemical weapons, the official said: «They will spread if we do nothing».