Terrorist attacks across three continents last Friday demonstrate the influence of Islamic State and wide reach, as well as the difficulties of countering its use of the internet to galvanise and inspire global violence.

Philip Morris lawyers have urged a judge to slash a $3bn (£2.1bn) punitive damages award to a cancer-stricken smoker and to grant a retrial.

A US jury has ordered tobacco giant Philip Morris to pay more than $3bn (£2bn) to a lifelong smoker, holding the company responsible for his incurable lung cancer.