If you're flying this week, be warned: it's an exceptionally messy time for air travel

Travelers at New York City's LaGuardia Airport on Sunday. CHARLY TRIBALLEAU / AFP via Getty Images If you're taking a flight in the US this week, get ready for a triple threat of disruption. A huge winter storm, cartel violence in Mexico, and TSA troubles are all causing issues. Nearly 9,000 flights have been canceled in two days as a winter storm pummels the northeast. Weather, violence, and political quarrelling have combined to make a real headache for American travelers this week. Nearl...