As I pointed out to you a few days ago:
'"Domestically grown cannabis accounted for 10 percent of all marijuana consumed in 1980, and increased to about 25 percent in 1992, despite the efforts of the Program. The potency of cultivated marijuana has also increased significantly as a result of modern agricultural methods and techniques." - http://www.justice.gov/oig/reports/DEA/a9520.htm
'The American entrepreneurial spirit can easily replace any reduction in imported supply.'
Since drugs can be hidden in legal imported goods, how do you propose we close the border to that traffic without bringing all importation to a grinding halt?
That is where the increase in government in the form of customs and border patrol in lieu of Dept of Education, EPA, and DOE mutts is acceptable. IMO.
So you think just shifting those resources will let us examine a significant fraction of all imported items?
25% is not 100% that is not enough. Spotting large commercial type MJ grows from the air is an easy task. No way the entrepreneurial spirit can provide that amount without large outdoor grows. Large greenhouses that utilize massive energy and generate heat are also easily detected.
Yes, it is a start. If it slows down Chinese made crap so what? Little Johnny will have to wait a few more days for his iPod of gangsta rap. If it increases our efficiency on curbing that imported product(s) sure and a side effect is better screening for trojan horse weapons by infiltrators.