A Virginia man was arrested at a checkpoint and charged with having an unregistered gun.
The unprecedented ramp-up in security happened as the handover of power continued, with inauguration events kicking off virtually on Saturday. And Mr. Biden's incoming chief of staff, Ron Klain, issued a memo detailing Mr. Biden's priorities in the first 10 days of his administration, including several executive actions.
"President-elect Biden will take action — not just to reverse the gravest damages of the Trump administration — but also to start moving our country forward," Klain said in the memo.
Mr. Biden and Vice President-elect Kamala Harris on Saturday also introduced members of their science team, with Mr. Biden insisting, "science will always be at the forefront of my administration."