SAN FRANCISCO AP – Four U.S. senators want Facebook to make it easier for its more than 400 million users to protect their privacy as the website develops new outlets to share personal information.

The call for simpler privacy controls came in a letter that the senators plan to send Tuesday to Facebook founder Mark Zuckerberg. The Associated Press obtained a draft of the letter signed by Sen. Charles Schumer, D-N.Y.; Sen. Michael Bennet, D-Colo; Sen. Mark Begich, D-Alaska; and Sen. Al Franken, D.-Minn.