New Year’s Advisory: As we head into the long-awaited rollover to the year 2000, warnings of terrorist attacks have proliferated. The arrest of an Algerian trying to smuggle bomb-making supplies into the U.S. from Canada suggests that the warnings are not simple cautions, but based on real evidence. Wherever you go for New Year’s and in the coming months, keep abreast of political developments so you can make informed choices about your travels.