Travelers on Southwest face a new rule as airlines try to reduce the fire risk on flights

Travelers will soon face restrictions on how many portable chargers they can carry on a flight as airlines continue to try to reduce the risk of another lithium battery fire aboard their jets.Southwest Airlines announced Tuesday that starting April 20, passengers will only be able to carry one charger on their planes, and they won’t be allowed to put it in the overhead bin or in their checked luggage. The airline already requires passengers to keep their chargers in the open while they are...