Was thinking about your transport issue zaz, you're right and it's bulk is the single most divergent aspect of cannabis over any other narcortic. While that is a hinderance in certain situations such as illegal boarder crossings and illegal mobility in general, it is infact no problem for those who have the power to move it once it is a 'confiscated package' within the boundries of the law.
The bulk means it is one of easiest narcotics to discover and sieze, make it legal and you've just taken away the cash cow that sustains between the higher value shipments which are harder to spot. Legal cannabis would not take any real pressure off drug enforcement agencies or their funding but it would add the need to fund a new division to stop the cannabis 'moonshine' elements....ok enough thinking back to friday.