Wednesday's overthrow of Egyptian president Mohamed Morsi was preceded by angry, often violent, protests in Cairo’s Tahrir Square.

Women protesters in particular were at risk for sexual assault, which was a persistent feature of the anti-government protests in 2012.

Enter Harrassmap, an interactive tool for reporting abuse via Twitter, emails and messaging. It maps out locations where users have reported sexual attacks and harassment. We’re joined by Harrassmap’s co-founder, Rebecca Chiao.