FAA says an increase in sick leave causes flight delays

Travelers endured widespread flight delays in the Northeast as federal officials grappled with a shortage of air traffic controllers, who missed paychecks Friday because of the partial government shutdown.LaGuardia Airport in New York and Newark Liberty International Airport in New Jersey were the hardest hit, but delays rippled across the nation's air-travel system.The disruptions are the strongest evidence yet that the 35-day government shutdown threatens to snarl the nation's air travel syste