Zach D Roberts/NurPhoto via Getty Images Canada recently designated the Proud Boys, a far-right hate group, as a terrorist organization, a move that has put pressure on President Joe Biden’s administration to take similar punitive action against the group and others who participated in January 6 attack on the US Capitol. The Congressional Research Service has asserted that the Capitol insurrection was an act of domestic terrorism, as defined by federal regulations and law. The FBI has identified the criminal activity by the Proud Boys as a domestic terrorism threat. But while the federal government maintains a list of foreign terrorist organizations, it does not have a mechanism to formally designate domestic terrorist organizations. National security experts argue that creating one would not only invite legal challenges, but would do little to improve law enforcement’s response to the nascent threat of domestic terrorism.