Diggs was a 2004 Black Engineer of the Year Award winner in the "Promising Scientist in Government" category. He was also named one of the 50 Most Important Blacks in Research Science in 2004 by Science Spectrum magazine.
"What makes him special is his ability to judge which problems are the best to work on. Perhaps the most important skill for a researcher is being able to identify which problems you have a good chance of solving and which solutions would be most important." John Preskill