This is how it used at the home of the unexplained in London. I hope you're enjoying either the

run-up to the holiday season 2017, or perhaps you're in the middle of it right now.

Now I know I said the previous edition of the show, 325, would be the last one for this year,

and the next edition of the unexplained would be coming to you at the beginning of 2018.

But because of something that's appeared in the news over the last few days, and the interview

that I've got connected with it, I felt you needed to hear this now. So we don't have any of the

bells and whistles with this show, no theme music, no shout outs, but this is important stuff.

If you're in America, or indeed if you're in the UK, anywhere in Europe, you will be aware of

the New York Times story a few days ago. By Helen Cooper, Ralph Blumenthal, and our friend here

on the unexplained Leslie Kane, out to do with the secret US Department of Defence Research program

Advanced Aerospace Threat Identification, that ran for five years from 2007 to 2012,

with a budget of 22 million US dollars, the person behind this has decided to split from it

and speak about it. Now this is where we come in. It is an astonishing story here,

and a story that includes accounts of craft being chased by military jets, and that kind of thing,

and there is apparently more to come out. Now because Leslie Kane, investigative researcher,

author, is a friend of this show and has been on this show before, I actually contacted Leslie.

She's part of this New York Times story and asked if she would come on this show before Christmas.

It's been a really busy time for her, and I really pleased that she said yes.

This is an astonishing story that you're about to hear pretty much all of it here, and as I say,

it is likely more will come out as we cross over into 2018. We may be looking at what could be

the most important story ever. This is a position that sometimes I wondered whether we'd ever find

ourselves in, but it seems that we are. So let's speak with journalist, author, investigator Leslie

...