A group of independent UN rights experts expressed alarm on Wednesday over a “violent crackdown” on teachers and wider civil society in Iran, demanding that those responsible be held to account. The experts, who are appointed by theUnited Nations but do not speak on its behalf, alleged that more than 80 teachers had been arrested or summoned by the authorities in the Islamic republic. The reported arrests come amid repeated protests by teachers against working conditions and low wages, including one held on May 1 – International Workers’ Day \- when they took to the streets of several cities, …