About 3,200 union-affiliated Houston janitors have voted to strike over what they say are threats and other misconduct by janitorial contractors for some of the city's biggest corporations.

A statement from the Service Employees International Union says 80 to 100 janitors at the nine-building Greenway Plaza complex just west of downtown Houston have walked off the job. SEIU spokeswoman Paloma Martinez says decisions will be made day to day whether other Houston buildings will be targeted.

More at source: Business Week