Tonight's broadcast of ABC's newsmagazine program "Nightline" will kick off with a segment shot during the 2007 AVN Adult Entertainment Expo in Las Vegas.

Touching on industry concerns over piracy, diminishing returns and the competition from amateurs dispersing content over the Internet, the piece will feature interviews with Wicked Pictures contract starlet Stormy Daniels director Brad Armstrong and celebrity porn auteur Dustin "Screech" Diamond, among other industry figures.

The show airs on ABC at 11:35 p.m. Eastern and Pacific time.