Members of the National Guard walk past the Dome of the Capitol Building on Capitol Hill in Washington, Thursday, Jan. 14, 2021. (AP Photo/Andrew Harnik)

Next week’s swearing-in of President-elect Joe Biden will see the biggest security presence of any inauguration in U.S. history. For days, thousands of National Guard troops have been pouring into the capital, and by Wednesday’s ceremony, up to 25,000 troops will be in place to guard against security threats.