That's the number of amendments to the bipartisan immigration reform bill the Senate Judiciary Committee is slogging through. They range from mundane typographical fixes to passionately controversial additions such as allowing gay Americans with foreign-born partners to sponsor them for green cards. And there are poison pills intended to kill the bill by, for instance, dismantling the pathway to citizenship. The Senate must not let the weight of so many revisions crush the best opportunity in decades to fix what's broken.