Thousands expected to boycott  Thousands of people across the
country are expected to skip school and work today to express
their outrage over immigration reform proposals that criminalize
illegal immigrants. Analysts say regardless of how many people
participate, the protest will push the immigration debate
forward. KPBS Reporter Amy Isackson has details.  Today's
protest has opened deep divides among immigrants' rights
activists. Some says skip school and work and don't buy anything
to show how dependent the U-S economy is on illegal immigrants.
Others say that's too disruptive and are pushing evening
rallies. Yet another group worries low participation could
deflate the power gained by massive marches held weeks ago.  But
according to the director of Chicano Studies at UCSD mush of the
concern is for naught. Jorge Mariscal says regardless of the
infighting and today's turnout, the boycott has already had an
enormous positive effect.  Mariscal: "First thing that it has
done is energized the entire community