Obama administration calls it biggest illegals sweep ever
                                
                                
                                    (Newser) -
                                    Federal officers rounded up more than 3,100 immigrants today in what the Obama administration called the biggest-ever sweep of illegals across the US, the  AP  reports. The six-day operation, involving more than 1,900 officers and agents, focused on apprehending immigrants who were fugitives or had serious rap sheets....