Whether the mandatory minimum sentence was improperly imposed for drug-trafficking conspiracy, because individualized jury finding as to quantity of drugs attributable to each individual defendant, rather than drugs attributable to conspiracy as a whole, is required to trigger mandatory minimum?

QUESTION PRESENTED I. WHETHER THE MANDATORY MINIMUM SENTENCE WAS IMPROPERLY IMPOSED FOR DRUG-TRAFFICKING CONSPIRACY, BECAUSE INDIVIDUALIZED JURY i: .FINDING AS TO QUANTITY OF DRUGS ATTRIBUTABLE TO EACH INDIVIDUAL DEFENDANT, RATHER THAN DRUGS ATTRIBUTABLE TO CONSPIRACY AS A WHOLE, IS REQUIRED TO TRIGGER MANDATORY MINIMUM? , vi , .