@CNN: Just under 1% of American teenagers are knowingly using the synthetic drug flakka, according to new research. But it could be more. https://t.co/edVua9gfLH https://t.co/M4CNY3AGom

@CNN: Just under 1% of American teenagers are knowingly using the synthetic drug flakka, according to new research. But it could be more. https://t.co/edVua9gfLH https://t.co/M4CNY3AGom