National Journal: Senate Judiciary Committee Chairman Chuck Grassley is not yet ready to support legislation that would curtail the National Security Agency’s surveillance authorities, meaning a major roadblock to post-Snowden spying reforms has yet to budge.

Despite weeks of negotiations involving his staff, the Iowa Republican said Tuesday he still has concerns about the USA Freedom Act, a bipartisan package that would effectively end the NSA’s bulk collection of Americans’ phone records.

“Not until I have discussions with people on the Intelligence Committee,” Grassley said Tuesday when asked whether he might support the bill. When pressed on what reservations he still had, Grassley offered, “Just finding a balance between national security and privacy.”