Where a defendant had multiple opportunities to object to imposition of enhancement at the time of sentencing and refused to do so each time, he had waived his argument and appeal was dismissed.The 7th U.S. Circuit Court of Appeals dismissed an appeal from a decision by U.S. District Judge Charles P. Kocoras.Roberto Macias helped smuggled illegal immigrants into the country in the late 1980s and early 1990s. For this he …