First, why is Marijuana illegal? In the 1930's William Randolph Hearst, who had significant financial interests in the timber industry testified to congress on the evils of marijuana, saying things like it make people insane and commit acts of cannibalism? at this time very few even knew what it was and to stop people from going insane Congress decided to make it illegal.
The truth is many paper manufacturers were thinking of changing from using trees to make paper to using hemp because it was cheaper and easier to grow and better for the environment, and Hearst stood to loose millions so he used his influence and testimony to help get marijuana banned in the USA.
So now that we know why it was made illegal, we can realize that not only would making it legal in the United States stop terrorist from smuggling it into the USA, but would give us another option to cutting down of millions of trees every year for paper products that can be made better from hemp.
Hemp has thousands of uses that we are unable to exploit because of its illegal status.
During WWII hemp was used for the rigging on parachutes as well as rope and material for uniforms.
Nowadays Marijuana can be used to relieve pain and some of the effect of cancer treatments and old age.
It has been proven to slow down the spreading of Alzheimer's, relieve the pressure behind the eyes from glaucoma. It also helps relieve migraine headaches and the side effect of cancer treatment.
But until the United States realizes how much money can be made from legalizing it, it will remain illegal.
This is much like the situation with online casinos in the USA. America was sending billions of dollars out of the country and the government needed to do something to keep the money here, so they banned Online Casino and just like online casinos and online gambling I believe one day the government will learn to take advantage of these things instead of just banning them.
Eventually the USA will realize that the best way to stop the flow of money out of the country is not to ban marijuana or online casinos, but to enter the market and compete.
If the USA did what Amsterdam has done the government would make not only billions in Taxes from the sales of Marijuana, but the economy would boom from all the tourism that it would bring in from all over the world.
The truth of the matter is that legalization is inevitable. The attitude of people has changed so drastically over the last 30 years, that eventually when the younger generations start to take over marijuana will eventually become legal because they understand the truth, and that is banning something only makes the market for it stronger.