For all other areas within the continental United States, the per diem rate is $172 for post-September 30, 2014 travel (consisting of $120 for lodging and $52 for meals and incidental expenses).or all other areas within the continental United States, the per diem rate is $172 for post-September 30, 2014 travel (consisting of $120 for lodging and $52 for meals and incidental expenses).
When passing through airport security screening: 1  Each liquid you carry must be in its own container of no more than 100ml (3.4 ounces). 2  All liquids should be carried in a single, transparent, re-sealable plastic bag of up to 20cm x 20cm (8in x 8in) with a total capacity of up to a litre (approximately one quart).
In 2006 there was an unsuccessful plot to use 'Liquid Bombs' to bring down down aircraft. Wikipedia link 2006 transatlantic aircraft plot. There is no special limit for taking liquids on the plane, what is limited is how much liquid you can bring through security.