In the aftermath of the Boston Marathon killing spree by foreign-born jihadists, see-no-evil bureaucrats in Washington are stubbornly defending America’s lax asylum policies. DHS Secretary Janet Napolitano told the Senate Tuesday that the screening process is rigorous, effective, and extensive. These people can’t handle the truth. Or tell it. The Tsarnaev brothers reportedly were granted asylum by “derivative” status through their parents. After entering on short-term tourist visas, the mother and father (an ethnic Chechen Muslim) won asylum and acquired U.S. citizenship. Next, younger son Dzhokhar obtained U.S. citizenship. Older son Tamerlan, whose naturalization application was pending, traveled freely between...