Vice President Joe Biden told an audience in Danville, Va., that Mitt Romney’s policies as president will put them “back in chains.” “”He said in the first 100 days he’s going to let the big banks write their own rules,” Biden said on Romney’s economic policy. “Unchain Wall Street! They’re going to put y’all back in chains.” Earlier in his speech, he said that Wall Street had gone from being the most efficient “allocator of capital” in the world to “a casino.”