Portside

The Bay Area strike is one of a series of nationwide one-day strikes -- timed for Labor Day and the 50th anniversary of the historic civil rights-era March on Washington for Jobs and Freedom. The strikes are the culmination of months of fast-food walkouts that began on the East Coast, organized by New York-based grassroots movement Fast Food Forward, and have rippled across the country.

Labor experts say unions are focusing on the hospitality field and less traditionally unionized workplaces - car washes, retailers, taxi and limo companies - as membership rolls have decreased. The percentage of private sector workers represented by unions has fallen from a peak of about 35 percent in the mid 1950s to about 7 percent, said Fred Feinstein, a former general counsel with the National Labor Relations Board who now works as a union.