Allegations of vast U.S. spying programs have complicated EU-U.S. ties at a delicate moment in transatlantic relations as Brussels and Washington negotiate a free-trade pact that would encompass almost half the world's economy.
U.S. Attorney General Eric Holder, who was in Greece for a meeting with his EU counterparts, told reporters that the Obama administration is committed to making sure that "EU citizens would have the same right to seek judicial redress" on privacy issues that U.S. citizens would have.
Holder said he would work with Congress on related legislation. No bill has yet been introduced.
The support for the legislation is part of a deal under which European countries are expected to share certain personal data with U.S. authorities for law enforcement purposes, including investigations into foreign fighters in Syria.