Airport workers at seven of the busiest U.S. hubs plan to strike tonight and Thursday over wages and what they allege are threats against unionizing. The Service Employees International Union (SEIU) says some 2,000 plane cleaners, baggage handlers, and other workers will strike at New York City's Kennedy and LaGuardia airports, as well as Newark Liberty, Chicago O'Hare, Boston, Philadelphia, and Fort Lauderdale.
