Unrepresented subcontracted service workers, including baggage handlers, cabin and terminal cleaners, customer service agents, ramp workers, security officers, skycaps, and wheelchair attendants, at 10 airports in nine cities conducted their largest-ever “unfair labor practice” strike in an ongoing campaign to persuade contractors to improve workplace safety and pay a minimum hourly wage of $15. The one-day strikes took place in Boston, Chicago, Broward County, Fla., Los Angeles, Newark, Philadelphia, Seattle, Washington, D.C., and in New York City at LaGuardia and John F. Kennedy airports. The strikes are part of the SEIU’s drive to organize airport service workers nationwide.