It's true that in 2006, the Republican-controlled House and a large bipartisan majority in the Senate passed, and President Bush signed, the Secure Fence Act, requiring 700 additional miles of double chain-link and barbed-wire fences with lights and camera poles. But in 2007, the Homeland Security Department complained of being, er, fenced in, arguing that different types of terrain required different barriers. So Cruz's predecessor, Sen. Kay Bailey Hutchison, authored an amendment that DHS would not be required "to install fencing . .. if the Secretary determines that the use or placement of such resources is not the most appropriate...