Montreal-based authors of "The Bonjour Effect" discuss the unwritten rules of conversation in France, and the communication hurdles visitors face — even those who speak perfect French. Then reporter Peter Costantini shares updates from Nicaragua, where he's been investigating problems behind the country's bid to build a canal to rival Panama's. For more information on Travel with Rick Steves - including episode descriptions, program archives and related details - visit www.ricksteves.com.