1.   Bus and subway workers paralyzed dozens of major cities in strikes from Monday through Wednesday.

2.   In October, oil workers paralyzed the industry for four days to protest frozen collective bargaining talks.

3.   In October, oil workers paralyzed the oil industry for four days, nearly cutting into exports and forcing the company to cede to almost all union demands.

4.   Oil workers paralyzed Brazilian refineries, drilling rigs and petrochemical factories on Wednesday at the start of a five-day strike for higher pay, union leaders said.

5.   Oil workers paralyzed the industry for four days in October, forcing the company to give in to almost all union demands.

6.   Oil workers paralyzed the oil industry in October during a four-day strike to protest frozen collective contract negotiations.

7.   Oil workers paralyzed the state-owned petroleum industry for four days in October and forced the government to cede to nearly every demand for higher wages and benefits.

8.   Striking public transport workers paralyzed the Brussels bus and subway network Monday bringing traffic chaos to the Belgian capital.

9.   Striking workers paralyzed ferry service and blocked Eurotunnel trains at this northern French port Monday, protesting an expected end to duty-free shopping in European Union countries.

10.   Striking train and subway workers virtually paralyzed rail service for a week last year, costing South Korea millions of dollars in export delays.