Recreational Marijuana States. Four states, including Alaska, Oregon, Colorado, and Washington, as well as Washington D.C. have passed ballots legalizing recreational marijuana. The amount you can possess at one time, however, varies between the states.
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.
The 3-1-1 rule is a handy way to remember what quantity of liquids, gels or aerosols TSA permits on a plane. The 3 indicates that each individual bottle of liquid should be 3.4 ounces (100 ml) or less. Even if the bottle is only half full, the size of the bottle, not the amount of liquid present, is what determines whether it is acceptable. The first 1 means that all of your bottles should fit inside one clear plastic zip-close bag. The second 1 is that only one bag per passenger is allowed. This bag should be removed from your carry-on luggage to make it easier to screen.