Leaving accusations of racism and issues of immigration aside... According to the DEA roughly 90% of America's illegal drugs come over the Mexican boarder. According drugabuse.gov, the US spends currently over 600-700 billion dollars on substance abuse. Concerning illicit drugs, we spend about 11 billion on healthcare and 193 billion overall, between healthcare, lost productivity, legal/crime, etc. [I'm not sure how far these numbers are calculated, but A LOT of addiction treatment in the US is private pay- no insurance, so these numbers could be greater] Right now, especially in the northeast, we have truely epidemic levels of heroin addiction, much of which apparently comes through the Mexican border. Last year in Massachusetts alone we had over 1,500 unintentional opiate overdoses, more than 4 per day average. Keep in mind Heroin addiction is one of the most difficult addictions to break, and therefore one of the costliest in terms of treatment. While pharmacietical opiates (painkillers) are certainly responsible for some over these overdoses, they primarily have served as a gateway to the more affordable and deadly heroin. While measures are being taken on the medical end, heroin use continues to rise. Trump says a wall will cost him $8B. More realistic expectations are $20-30B. My question is if the nation is spending $200B+ on illicit drugs, could investing ~$25B investment in a wall be worth it? My thought is that while there ways around walls, but even a relatively short term disruption in the drug trade may have significant impact in breaking the cycle of addiction. (Decrease supply/availability, increased costs, etc). Therefore, there may be some legitimacy to Trump's wall in this regard.