(ELK POINT, S.D.) In this rural outpost of just over 1,900 residents, a local college student has become a courtroom sketch artist, trailers on Main Street are ersatz offices for a major law firm and members of an agricultural youth club are puzzled by a new metal detector at the local courthouse. The changes are part of Elk Point's selection as site of a multibillion-dollar defamation case pitting ABC News against South Dakota-meat processor, Beef Products Inc. The company contends that ABC and reporter Jim Avila defamed it by referring to its signature product as "pink slime" in 2012 broadcasts....