use link:

https://www.pbs.org/wgbh/pages/frontline/newswar/tags/confidentialsources.html

Why is a federal shield law needed when nearly every state has a shield law?In other words,when isn't a state shield law adequate to protect a journalist?

What exactly is it that a shield law protects the press from having to do, a protection unavailable to the general public?

What are the arguments that the press should be protected? Compare the press to other professionals?

What did the U.S. Supreme Court rule in Branzburg v. Hayes about protecting the press' sources and how did lower courts oddly interpret that ruling?

What are the ethical problems that could arise when if the government decides who should be protected by a journalists' shield law?