For those so obsessed with "national security" so long as it means the Great Wall of Forgotten America, you might Internet-search this: African Swine Fever. This is just the the most presently visible of the foreign-animal diseases threatening our animal-derived food supply and against which our primary protection in the USDA. It is astonishing that the virus with no known immunization has spread all the way to China. ASF virus results in billions of euros lost in the pork industry annually in Europe, which has been plagued by this disease since 2007 due to land-mass proximity to Africa via the Caucasus. Like most industries, there is no will to collectively implement measures to guard against these threats despite what supposed Libertarians might have you believe, so the federal government must take on the responsibility to protect our food supply, believe it or not. Then consider that, according to your beloved DHS (the largest bureaucracy to be created since WWII), 75% of emerging human diseases started as animal pathogens, and 60% of emerging human pathogens are in fact zoonotic (jump species), such as mad cow. And, you say you don't like subsidies? Well, the USDA is buying back excess pork as a banana-republic-style political favor to Trump's rural base affected by the trade war with China - specifically, retaliatory Chinese pork tariffs, even though the loss of sales to China has eased a bit because they've culled a quarter of million pigs already in China as an ASF virus biosecurity measure. It's a bit more complex than you think. Fund the other agencies, particularly the ones who do provide national security against existential threats, beyond the fictitious emergency at the Southern Border, such as the USDA. Also, to see just how effective existing measures against Southern Border crossings are, check out the stats on that topic derived from government data and presented interactively on USAFacts.org by searching on Immigration and Immigration Enforcement at that site. Border apprehensions have dropped from 1.7M in 2000 to just 311k in 2017. Where's the emergency, other than the one on Pennsylvania Avenue?