Europe's most wanted fugitive Salah Abdeslam has been extradited to France from Belgium to face questioning over last November's attacks in Paris.

World News Update, What you need to know

Poison gas conjures up the ghost horrors of WWI. But it’s been used in battle since. And Western leaders are warning that Russia may use it soon in Ukraine. What would that mean?

A hidden announcement from the State Department about consequences for foreigners “complicit in censoring Americans” has sparked a new level of global interference not seen from America since the end of the Cold War. Peter Hartcher asks is this the beginning of a new level of interference?

The US president has announced a total ban on citizens from a dozen countries entering the US and a partial ban on several more nations, a move that partly revives controversial travel restrictions from his first term.