Russia is warning that any U.S. attempt to use a low-yield nuclear weapon against a Russian target would set off a massive nuclear response.

The coronavirus pandemic is fuelling extremism on the far-right and far-left in Europe and giving Islamic State and other militants cover to regain influence, the European Union’s counter-terrorism chief has warned.

Who remembers the last operation that al-Qaeda claimed responsibility for? For many people, the answer will need s ome thought.