Bernie has come under fire from the left for flip flopping on his defense record. As mayor of Burlington, VT, he ordered the police to arrest protesters at a GE plant where they were building guns (allegedly) for use in a South American conflict. As Senator he backed the F-35 project which, coincidentally, keeps a base in Vermont. That project finished some 70% overbudget. Why should he stand up to the nationwide pressure to keep people employed, business afloat, etc?