Anyone who has been to Ground Zero will testify it is a remarkable memorial and given its iconic importance in America it is no surprise David Cameron has come here today.
The subliminal message and the often stated message is that al-Qaeda is not defeated but its ability to harm all of us has been degraded.
It is a difficult message to get across on a day when in Afghanistan things are not going very well.
More top news
Nicola Sturgeon has attacked the "scale and speed" of the Conservatives' planned spending cuts in her first major post-election speech.
Mobile phone giant O2 has apologised after service suddenly went down in a number of areas across the UK, sparking a flood of complaints.
A grandma who became an online hit when her grandson started tweeting pictures of her balancing things on her head has gone viral - again.