DETROIT (AP) — Students were lined up against walls in hallways and illegally frisked by police and school security officers, according to a federal lawsuit filed Thursday. The Feb. 18 search at Mumford High School was one of at least four conducted this school year at high schools in the city, said Detroit attorney Amos Williams, who joined the American Civil Liberties Union in filing the suit on behalf of three students. The officers were looking for contraband such as guns or drugs, but pat-down searches of Mumford's approximately 1,800 students turned up no such items, said Michael Sternberg, legal...