Calling itself the "littlest David" battling the "biggest Goliath," a fledgling Colorado credit union took the Federal Reserve to court Monday in a case that may determine whether the cannabis industry will bank openly or continue to operate almost entirely in cash.

Forcing Federal Reserve to bank on pot credit union would give approval to criminal activity, federal judge says.

BOSTON (AP) -- As marijuana shops sprout in states that have legalized the drug, they face a critical stumbling block - lack of access to the kind of routine banking services other businesses take for granted.

BOSTON (AP) -- As marijuana shops sprout in states that have legalized the drug, they face a critical stumbling block - lack of access to the kind of routine banking services other businesses take for granted.