ROME (Reuters) – Iran must stop executing and persecuting protesters and should open a dialogue with them, Italy’s Foreign Minister Antonio Tajani said on Wednesday after summoning the Iranian ambassador. Tajani said death sentences against people who take part in demonstrations or women who refuse to wear headscarves were a grossly disproportionate and unacceptable form of punishment. “Taking off a veil or participating in a protest is not a crime that can lead to the death penalty anywhere in the world,” he said. Nationwide unrest erupted in Iran three months ago after the death in detention…