Did the district court err by allowing the government to violate the plea agreement?

QUESTIONS PRESENTED FOR REVIEW ISSUE #1 DID THE DISTRICT COURT ERR BY ALLOWING THE GOVERNMENT TO VIOLATE THE PLEA AGREEMENT ? ISSUE #2 DID THE DISTRICT COURT ERR BY DENYING MR. MAHAN’S OBJECTION TO THE BASE OFFENSE LEVEL BASED ON DRUG AMOUNTS NOT SUFFICIENTLY PROVEN? ISSUE #3 DID THE DISTRICT COURT ERR BY DENYING MR. MAHAN’S OBJECTION TO THE DENIAL OF A THREE-LEVEL DOWNWARD ADJUSTMENT FOR ACCEPTANCE OF RESPONSIBILITY? ISSUE #4 DID THE DISTRICT COURT ERR BY DENYING MR. MAHAN’S OBJECTION TO THE DENIAL OF A DOWNWARD ADJUSTMENT PURSUANT TO BECAUSE HE MET THE CRITERIA FOR “SAFETY VALVE” ? ISSUE #5 DID THE SENTENCE IMPOSED BY THE DISTRICT COURT UNREASONABLE BECAUSE IT IS GREATER THAN NECESSARY TO ACCOMPLISH THE GOALS OF 18 U.S.C. § 3553(a)? ii