The Senate Appropriations Committee approved a measure Thursday that is intended to ensure marijuana businesses have access to banking services. [caption id="attachment_9016" align="alignright" width="200"] Sen. Jeff Merkley[/caption] The amendment, offered by Sen. Jeff Merkley (D-OR) to the Financial Services and General Government Appropriations bill, would prohibit the Treasury Department and its enforcement arm, the Financial Crimes Enforcement Network or FinCEN, from using federal funds to punish…