Catherine Herridge: Protecting Sources Is a Hill Worth Dying On

If confidential sources are not protected, investigative journalism will die. 

I know that sounds overly dramatic, and I know you’ve probably heard it a million times. But it’s true. I’ve been a TV correspondent for three networks—Fox, CBS, and ABC—across four decades. I’ve broken my share of stories about government wrongdoing, and I know for a fact tha…