BBC News with Jonathan Wheatley
The man who led Britain into war in Afghanistan and Iraq, Tony Blair, has described radical Islam as the greatest threat facing the world. In a BBC World Service interview, the former British prime minister said radical Islamists - whether in Chechnya, Kashmir, the Palestinian territories, Iraq or Afghanistan - believed that anything done
in the name of
their cause was justified.
"After September 11th, rightly or wrongly, I felt the
calculus
of risk had changed, and I feel it's still changed. I still think there is the most enormous threat from the
combination
of this radical extreme movement and the fact that if they could, they would use nuclear, chemical or biological weapons. I think they would if they could, and I think you can't take a risk with that happening."
Mr Blair said Iran needs to understand it couldn't have nuclear weapons; otherwise it would be stopped. Mr Blair denied that his own policies when in power had fuelled support for radical Islamists.
Police in Pakistan say a suicide bomb at a Shia Muslim
procession
in the city of Quetta has killed at least 50 people. The procession is an annual event in support of the Palestinian people, and the bomber struck as he passed through a crowded market area. The Pakistani Taliban said they carried out the bombing.
The Brazilian oil company Petrobras has unveiled plans to sell more than $64 billion of new stock in what some analysts are describing as the world's biggest ever share offering.