The London conspiracy is "a stark reminder that this nation is at war with Islamic fascists who will use any means to destroy those of us who love freedom, to hurt our nation," the president said on a day trip to Wisconsin.
"It is a mistake to believe there is no threat to the United States of America," he said. "We've taken a lot of measures to protect the American people. But obviously we still aren't completely safe."
His remarks came a day after the White House orchestrated an exceptionally aggressive campaign to tar opposition Democrats as weak on terrorism, knowing what Democrats didn't: News of the plot could soon break.