We have read a number of examples of contact between civilizations that changed

We have read a number of examples of contact between civilizations that changed the course of history. In some cases, the impact of technology was accompanied by economic and medical impacts.
Using the readings from Guns, Germs, and Steel and The Big Questions in Science, the Sky News video, and the National Public Radio audio podcast as background, write a well-documented, 500- to 1000-word APA-compliant paper that addresses the following:
Examine at least two examples of cultural contact between civilizations in which the exchange created significant cultural and/or societal changes.
Based on these past events, identify both cautions and possible guidelines for similar situations that are occurring in the present or might occur in the future. [MO 2.2, MO 2.4]
Examples may come from your readings or more contemporary accounts in news or other media. Please reference all sources.