BURLINGTON, Vt. (AP) — As Ben & Jerry’s celebrated its annual Free Cone Day on Tuesday, one of the brand’s co-founders was focused on a different sort of freedom. On the corner where his first ice cream shop opened in 1978 — and where the first Free Cone Day was held a year later — Ben Cohen called on Ben & Jerry’s owner The Magnum Ice Cream Co. to sell the brand. Cohen said Magnum is stifling Ben & Jerry’s social activism and he wants to see the brand sold to a group of socially-minded