Mr Blair said a tendency to "sympathise" with extremism was not only dangerous but also disempowering for moderate Muslims, because it made people resent them as much as extremists.
He said he was "intrigued" by the fact that western leaders, including Barack Obama, the US President, felt the need to condemn Terry Jones, a pastor who threatened to burn a Koran.
"Suppose an Imam, with thirty followers, in Karachi was to burn a bible," he said. "I can barely imagine a murmur of protest. It wouldn't be necessary for the President of Pakistan to condemn it because no one here would remotely consider he supported it."
The former prime minister also called on the west to make it "crystal clear" to Iran that their acquisition of a nuclear bomb would be unacceptable to the entire "civilised world".
"Go and read the speech of Iran's President to the United Nations just days...More >>