Next month, the Supreme Court is scheduled to hear oral arguments in a case that could have major implications on digital privacy for Americans and foreigners alike. The issue at hand in Microsoft Corp. v. United States is whether federal law enforcement can compel a private company to turn over customers’ information stored in servers outside of the country.

The case exposes a legal gray area, highlighting the need for Congress to draw a clear line between the privacy rights of customers and the investigative powers of law enforcement in the age of the internet.