Hallie Lauer | Staff Writer If you have ever flown on a plane, you probably know that the Transportation Security Administration (TSA) limits passengers to 3.4 ounces of liquid inside bottles. A product created by a recent Duquesne graduate is designed to help travelers who want to take hair gel on their travels. Nathan Failla, who graduated in 2016 with dual majors in entrepreneurial studies … Continue reading Duquesne graduate starts hair gel business