Club member Ed Barks gives advice to Facebook CEO on CBS broadcasts

As hearings surrounding Facebook's woes approached on both the House and Senate sides recently, CBS News tapped National Press Club board member Ed Barks for his insights on what it takes to testify before Congress. Of particular interest: Some of the challenges Facebook CEO Mark Zuckerberg might encounter as a first-time witness.

The CBS package aired on the Friday, April 6, edition of the CBS Evening News and on the following day's broadcast of CBS This Morning.

Barks helps prepare executives to testify on Capitol Hill, as well as when dealing with reporters and delivering presentations. Watch the CBS story here.