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.
1 The 3-1-1 rule states that you can carry 3 ounce or smaller containers of liquid or gel in a 1 quarter-size clear plastic zip-top bag, and only 1 bag per traveler. 2  The bag must be placed in the security bin (not packed in your carry-on luggage.3  See our collection of 3-1-1 Kits that meet these TSA guidelines. The 3-1-1 rule states that you can carry 3 ounce or smaller containers of liquid or gel in a 1 quarter-size clear plastic zip-top bag, and only 1 bag per traveler. 2  The bag must be placed in the security bin (not packed in your carry-on luggage. 3  See our collection of 3-1-1 Kits that meet these TSA guidelines.