Facebook's Mark Zuckerberg and Sheryl Sandberg Reveal a New Tool on Facebook that Could Save Lives in Exclusive Interviews with ABC's Robin Roberts and Diane Sawyer

  Zuckerberg Interview to Air on "Good Morning America" and Sandberg Interview to Air on   "World News with Diane Sawyer" Tuesday, May 1, 2012

Credit Rick Rowell/ABC

In rare, exclusive interviews, Facebook founder Mark Zuckerberg and COO Sheryl Sandberg will reveal a new tool for the social networking site to ABC News' Robin Roberts and Diane Sawyer on Tuesday, May 1. First on "Good Morning America" Tuesday, Zuckerberg gives Robin Roberts the first look at a new Facebook tool which has the power to save lives from their new Menlo Park, CA  headquarters. Then on "World News with Diane Sawyer," one of America's most powerful businesswomen Sheryl Sandberg will sit down for an exclusive interview with Diane Sawyer and discuss the personal stories that led to this new initiative and its goals.

Portions of the interviews will also be featured Tuesday on "Nightline" and ABC News and Yahoo!'s "Newsmakers" series as well as ABCNews.com, ABC News Radio and ABC NewsOne.

"ABC World News with Diane Sawyer" airs nationally at 6:30pm/ET on the ABC Television Network. Michael Corn is the executive producer of the broadcast. Follow Diane Sawyer and the "World News" team on Twitter and Facebook: @DianeSawyer; @ABCWorldNews; facebook.com/DianeSawyer; facebook.com/WorldNews.

Emmy Award-winning "GMA," featuring the anchor team of Robin Roberts, George Stephanopoulos, Sam Champion, Lara Spencer and Josh Elliott, airs live Mon.-Fri. (7:00-9:00 a.m., ET) on ABC. Tom Cibrowski is senior executive producer.

"Nightline," the #1 broadcast in late-night, airs weeknights from 11:35 p.m., ET to 12:00 a.m. on the ABC Television Network. Jeanmarie Condon is the executive producer.

This ABC News division-wide exclusive series is bring coordinated by ABC News executive producer Eric Avram.