The U.S. government is increasingly using secret evidence allowed under new anti-terrorism laws to prevent certain critics from entering the United States, according to a group of civil rights and academic organizations. The group, led by the American Civil Liberties Union, went to court Tuesday in Boston seeking to force the State Department and the Department of Homeland Security to grant an entry visa to a Muslim academic who they said was barred from the United States because of his criticism of American foreign policy. ... The lawsuit, filed in U.S. District Court, seeks to force the government to issue...