President Obama on Tuesday said he was “confident” changes to the National Security Agency‘s bulk collection of phone metadata would both address privacy concerns and keep the nation safe from terror attacks.

“Overall, I’m confident that it allows us to do what is necessary in order to deal with the dangers of a terrorist attack, but does so in a way that addresses some of the concerns that people had raised,” said Obama at a press conference in The Hague, where he is attending a nuclear summit with other world leaders.