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Jim Hall, an epidemiologist at Nova Southeastern University, talks to José Díaz-Balart about the dangers of the synthetic drug flakka that was placed on the U.S. list of illegal substances in 2014. » Subscribe to msnbc: About: msnbc is the premier destination for in-depth analysis of daily headlines, insightful political commentary and informed perspectives. Reaching more than 95 million households worldwide, msnbc offers a full schedule of live news coverage, political
