Production of many goods today is spread throughout the globe, which keeps costs down for consumers and allows innovation to spread more rapidly through increased competition.
This serves as a proxy for all of our commodity-related expenses such as food and fuel, and, as the effects of currency devaluation spread, rising prices for all sorts of goods and services.
The United States has benefited as much as any other country from the free exchange of goods, the safety of global sea lanes, the spread of democracy and the great-power stability that have characterized the entire post-World War II era.
Emerging markets are direct or indirect sellers of economic resources and final goods to mature economies, and a recession in these economies will certainly spread to mature economies.