Tulsi Gabbard, President Trump’s nominee for director of national intelligence, refused to fully denounce the 2013 leaks by Edward J. Snowden, eliciting concern from both parties.

Tulsi Gabbard, the nominee for director of national intelligence, repeatedly avoided joining senators in calling Mr. Snowden a traitor.

Border enforcement agencies have spent billions assembling surveillance tools to track and find people. These could be critical in President Trump’s immigration agenda.

The move by an agency within the Department of Homeland Security was part of a broader effort by the Biden administration to strengthen oversight and set clear guidelines for handling intelligence.