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"It is not a country of law, not a state of law anymore. It has given men a chance to harass women without being accused," said Afaf Marie, director of the Egyptian Association for Community Participation and Enhancement, an NGO.
Some activists fear that women's rights will suffer under the rule of President Mohammed Morsi, who is an Islamist.
Government inaction has allowed the problem to spiral out of control, Heba Morayef, director of Human Rights Watch for the Middle East and North Africa, told NBC News. Police no longer inspire fear as they did before the revolution. In addition, locals say it appears there are fewer police on the increasingly lawless streets -- and often none in Tahrir Square.
"The state is failing to respond,” she said. "Men don’t have to worry about being caught.”