Preemptive self-defense is a large component of the US’ security strategy. The US seeks to counter threats at the point of genesis rather than the point of commission. In the border context, the point of commission is the Port of Entry, which could be at the actual land/sea border or the functional equivalent of the border, such as an international airport located away from the actual border. Within US law enforcement, the DHS agencies, Customs and Border Protection (CBP) and Homeland Security Investigations (HSI), are uniquely empowered with border authority, which provides them more latitude to perform interviews and searches than the Fourth Amendment normally allows. Part of the CBP and HSI “door step” strategy is the deployment of personnel to overseas locales in order to employ preventative programs at the point of genesis.

The above assumes that international engagement is a prerequisite of border security, premised mostly on the movement of people and goods for the promotion of commerce. It seems that a decrease in the reliance on imports and exports—that is, a more isolationist, insular economic policy—would better enhance border security, by lowering the probability that contraband and malevolent actors could cross US borders. If this hypothesis is true, should economic freedom or security strategies dictate US policy?

6. Effects of a tariff Suppose the following graph shows the domestic demand (D) and domestic supply (S) for cheese in Algeria, which is a producer as well as an importer of cheese. The free trade world price of cheese (P.) is $2,500 per tonne. 7000 Price with Tariff Tariff Revenue PRICE COST (Dollars per tonne) Change in PS DWL 1500+ 1000
QUANTITY (Milions of tonnes) per tonne. Algeria would produce million tonnes of cheese and import With free trade, the price of cheese in Nigeria would be s million tonnes. Suppose Algeria’s government imposes a 60% tariff on cheese imports. Assume the tariff does not influence the world price of cheese. On the preceding graph, use the black line (plus symbol) to show the world supply of cheese with the tariff its domestic consumption by The tariff million tonnes, and Algeria’s production of cheese by million tonnes, its imports by million tonnes. On the preceding graph, use the green quadrilateral triangle symbols) to shade the area that represents tariff revenue. Then use the purple point (diamond symbol) to shade the area that represents the change in the producer surplus resulting from the tariff. Finally, use the black points to shade the area, or areas if there are more than one on the graph, that together represent the deadweight loss resulting from the tariff Note: Select and drag a fill area point from the palette to the graph. To fill in regions on the graph, merely drop the fill area point on the desired region.
On the preceding graph, use the green quadrilateral (triangle symbols) to shade the area that represents tariff revenue. Then use the purple point (diamond symbol) to shade the area that represents the change in the producer surplus resulting from the tariff. Finally, use the black points to shade the area, or areas if there are more than one on the graph, that tooether represent the deadweight loss resulting from the tariff Note: Select and drag a fill area point from the palette to the graph. To fill in regions on the graph, merely drop the fill area point on the desired region FH in the blank calls in the following table to summarize the effects of the tariff on Algeria’s welfare. (Hint: The area of each shaded region on the graph can be found by clicking on the polygon.) Amount of Change (Millions of dollars) Change In… Gain or Loss Tariff revenue Producer surplus Consumer surplus Change in total welfare