January, 2006:   The House just passed the toughest anti-amnesty, enforcement-only immigration bill in history. Immigrants feel targeted, and 'Sensenbrenner' (the House bill's sponsor) becomes a household word for Latinos. Finally the Senate tackles immigration reform.  Millions of people take to the streets all over the U.S., marching until a bi-partisan compromise modeled on last year's Kennedy-McCain bill goes to the Senate floor.  But leaders in both parties seem to want an election issue, not a bill.  Advocates smell a double-cross, and go public with an attack.  What will it take for the Senate to respond?