Oklahoma: President Donald Trump and his supporters say the nation's greatest security risk lies in attackers who potentially sneak into the US from abroad. But a list of worldwide attacks recently released by the administration left off many that were carried out by right-wing extremists and white supremacists.
And organizations that track terrorist and hate groups say the government focuses too narrowly on threats from the outside instead of adopting a broader approach.
Bud Welch knows something about the human cost of terrorism. His 23-year-old daughter was killed when a rental truck packed with explosives destroyed the Oklahoma City federal building.
Welch says he doesn't see much difference between the Islamic State terrorism group and the anti-government militia movement in the US.