You never know what will happen these days with a comedian in a diverse group, especially a group made up mostly of engineers.  Robert Mac was able to get the audience to loosen up and laugh at several serious issues facing the United States, e.g., global warming and border security.

His ability to make fun of himself during the course of his routine helped everyone become more comfortable and leave the event with a smile. 

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Hal Tharp, Associate Department Head
Electrical and Computer Engineering, University of Arizona
ECE Conference