I was stunned to learn about the H-2A Federal program, and how it works. Farmers have to pay the travel costs for the guest workers, provide them approved housing, bus them from their housing to the job, and pay for their return trip back home. The farmers also have to pay them $12/hr (Washington state), while the domestic farm workers get paid $9.19/hr.
http://en.wikipedia.org/wiki/H-2A_Visa

n a nutshell, domestic farm workers are going on strike - they say they get paid less than the foreign legal migrant workers and that is not fair. Now, most of these people are probably not here legally, but they feel that they should get better/equal pay because they successfully snuck in.