A bipartisan group of senators is proposing a major overhaul of the way the federal government collects data on college students, setting the stage for a showdown over how to balance student privacy with a growing interest in measuring college outcomes. Sens. Orrin Hatch (R., Utah), Elizabeth Warren (D., Mass.), Bill Cassidy (R., La.) and Sheldon Whitehouse (D., R.I.)—all members of the Senate Health, Education, Labor and Pensions committee—on Monday introduced legislation that would overturn a decade-old ban on collecting individual student data that track enrollment, completion and graduate success.