May 1 immigrant boycott aims to "close" US cities

"Pro-immigration activists say a national boycott and marches planned for May 1 will flood America's streets with millions of Latinos to demand amnesty for illegal immigrants and shake the ground under Congress as it debates reform."

This ought to be interesting. I also think it's interesting they don't mention Houston. You'd think the huge illegal immigrant population would make us a major target for this. Maybe the immigrants assume (and probably correctly) that in Texas, people are liable to open fire on them?