WASHINGTON — The Biden administration will lift long-running COVID-19 travel bans against residents of most European countries on Nov. 8 and implement a new vaccination-and-testing rule — while also making travel tougher for Americans who are unvaccinated. Under the new policies, most travelers to the US must get tested for the virus within three days if they took one of the World Health Organization’s approved vaccines. The new rules tighten restrictions on unvaccinated US citizens and permanent residents, who will have to get tested within one day of travel — versus three days currently. The slow repeal of the nearly...