Ronan Farrow says he'll next expose 'the machine' that aided Harvey Weinstein

People have asked, How could this many allegations have stayed undercover this long?'

I think theres much more to be said about just how far that went.

Colbert asked if that meant the people who aided and abetted it, how this was institutionalized in Hollywood.

Farrow mentioned this machine earlier in the interview when he reflected on the ongoing reporting.

There are the same profoundly personal reasons why it is sometimes almost impossible to come forward.

Theres a lot of pressure, and thats something Ive reported on, too.

It wasnt just directed at me, it was directed at a whole range of reporters.

You cant stop going if you have evidence that theres maybe an ongoing pattern of behavior thats endangering people.

Allen adamantlydenied the claim.

It was an assignment I received and I actually didnt know about it until then, Farrow said.

We all have to get tougher.

Watch Farrow onThe Late Showin the video above.