Johnny Jet just got back from New York after a conference, and he says that conferences are what he calls a "flu fest" because people are coming from all over the country, or even world, and they are sharing a closed space of an airplane with people who are sick. Now he's got the flu.
Tip of the week - If the shutdown happens three weeks from now and you have to travel, download the app MyTSA. It uses crowd sourcing to advise you how long the TSA lines are at your airport. Get TSA PreCheck or Global Entry. Around $100 for five years. It'll also answer any questions on what you can and cannot bring.
Also, download the airline's app. You'll get information on flight delays and deals, as well!