It is estimated that 25 million travelers will take to the skies this Thanksgiving weekend. With elevated security measures in place at airports across the nation, the Transportation Security Administration is taking steps to make sure everyone understands the rules. The big change from years past is the whole issue of taking liquids on board flights. Ever since the failed terrorist plot in England this past summer, the TSA has cracked down on all liquid items. TSA’s education campaign calls it 3-1-1, meaning you can now take containers of up to three ounces of liquid, in a one-quart Ziploc bag…