Senator Joseph Lieberman’s great legacy, besides giving Jon Stewart years of material, is his efforts to create the gargantuan Department of Homeland Security (DHS) and split the former Immigration and Naturalization Service into three separate agencies, Citizenship and Immigration Services (USCIS), Customs and Border Protection (CBP), and Immigration and Customs Enforcement (ICE). The breakdown in the agencies’ missions, simply put, is USCIS adjudicates benefits like temporary and permanent residence statuses and citizenship determinations, CBP polices the borders and internal checkpoints,…