Legislation was introduced in the Senate and House of Representatives on Thursday that would end marijuana prohibition at the federal level and replace it with a system in which marijuana is regulated and taxed similarly to alcohol. Bills filed by Sen. Ron Wyden (D-OR) and Rep. Jared Polis (D-CO) would remove marijuana from the Controlled Substances Act, leaving states to determine their own marijuana policies, and impose federal regulations on marijuana businesses in states that choose to regulate…