Speaking at a Downing Street press conference today, David Cameron said it was vital to stop UK-born jihadists trying to return home after fighting in the Middle East.
The number of foreign fighters in that area [Iraq and Syria], the number of foreign fighters including those from the UK who could try to return to the UK - this is a real threat to our country.
We will do absolutely everything we can to keep our people safe.
That means stopping people from going, it means arresting people who are involved in plots, it means focusing our security, our policing, our intelligence effort on to that area of the world, on to those people.
The Foreign Secretary has been clear on the threat of Isis, but he has ruled out the prospect of any UK military involvement in the crisis.
Iraq’s foreign minister, Hoshyar Zebari, is a natural diplomat. Polite, immaculately dressed, and blessed with a great memory.
Isis has paraded military equipment in Mosul it captured from when the Iraqi army fled in what some see as a "nightmare scenario."