by Claudine Zap Ordinarily, the news that a grandma had decided to row around Great Britain would make you want to tell her to stick to knitting. But when the grandmother in question is a former U.S. Marine, you better believe she is darn well going to do it. The all-female team of amateur rowers included one Angela Madsen , 50-year-old grandmother, wheel-chair bound Paralympics athlete â€" and yes, former Marine. Not content with competing in the Paralympics , the Longbeach,