As of now, 20 states have legalized marijuana for medical purposes, and voters in Colorado and Washington have approved marijuana for recreational use. About a dozen more states are expected to legalize marijuana in some form over the next several years.
As of January 31, 2014, passengers traveling internationally into the U.S. and connecting to another flight are allowed to have in their carry-on baggage liquids in excess of 3.4 ounces (100 mL) that were purchased as duty-free merchandise.
How Big Can My Carry-On Bag Be These Days? Though some airlines (JetBlue; Alaska) give you a few extra inches here and there, the major domestic carriers are all in agreement: the maximum allowable carry-on bag is 22 x 14 x 9. This standard has been in place for years, but in the past airlines were lenient about ensuring bags adhered to it.