A Carthage, Texas, woman has pled guilty to federal drug charges. 31-year-old Christine Stephens Carroll has admitted to possessing pseudoephedrine with the intent to manufacture methamphetamine. She'd been accused of buying cold pills containing pseudoephedrine from a Brookshire Brothers store in Carthage. She's admitted to making similar purchases more than 60 times between October of 2008 and April of 2010 -- with the intent of manufacturing meth. Her husband, Billy, and Roy Tatum have both pled guilty in the case and are awaiting sentenncing. The U-S Attorney's Office says Carroll could be facing up to 20 years in federal prison when she's sentenced.