I think it's clear that these stunning advances of Isis in Iraq and Syria is certainly ringing alarm bells here in Washington.
There's a recognition that Isis is a ruthless enemy, that it has access to tens of millions of dollars and potentially continuing revenue through oil resources, and that it might also want to make a global statement of its ambitions.
You throw into the mix the fact that there may be other al-Qaida affiliates, rivals to Isis that are seeking to show their continuing relevance and credibility on the Jihadist stage and it's pretty clear why the Department of Homeland Security are really very concerned tonight.
More top news
British Cycling's Dr Freeman has told MPs that the controversial jiffy bag delivered to him in France contained only a common decongestant
Local roads in England and Wales are so potholed that they resemble "Swiss cheese" and one in six will not be fit for purpose in five years.
The singer best known as Johnny Rotten offered advice for Britain's Brexit negotiators as he told ITV News his biggest hit is misunderstood.