The judge, the defense lawyer, and even the prosecutor all agreed that Andrea Turner probably never realized how serious her crime was. For a kickback sometimes as small as $50, Turner, a longtime employee of the Social Security Administration, routinely processed fraudulent applications for Social Security cards. She directed many of the cards to the same Elizabeth address, where they were sold to illegal immigrants. But in the aftermath of the 9/11 terror attacks, federal investigators stepped up enforcement of such identity fraud cases. And the penalties, Turner discovered, can be harsh: Yesterday the 40-year-old mother from Linden was ordered...