National Labor Relations Board en Union seeks to represent workers at ConAgra plant <p style="color: rgb(51, 51, 51); font-family: Verdana, Helvetica, Arial, sans-serif, Geneva; font-size: 11px; line-height: 15px; ">Employees at ConAgra Foods&#39; Lamb Weston sweet potato processing plant near Delhi will decide next week whether to unionize.</p> Sun, 22 Jul 2012 17:55:15 +0000 The Associated Press 16288 at