SEATTLE – Two U.S. senators are asking Attorney General Eric Holder to investigate whether employers asking for Facebook passwords during job interviews are violating federal law, their offices announced today.

Troubled by reports of the practice, Democratic Sens. Chuck Schumer of New York and Richard Blumenthal of Connecticut said they are calling on the Department of Justice and the U.S. Equal Employment Opportunity Commission to launch investigations. The senators are sending letters to the heads of the agencies.

The Associated Press reported last week that some private and public agencies around the country are asking job seekers for their social media credentials. The practice has alarmed privacy advocates, but the legality of it remains murky.