Tunisia protests after government critic shot dead

TUNIS (Reuters) - A Tunisian opposition politician was shot dead on Wednesday, sending protesters onto the streets of cities nationwide two years after the uprisings that swept Tunisia's president from power and inflamed the Arab world.

The headquarters of the moderate Islamist Ennahda party, which rules in a fractious coalition with secularists, was set ablaze after Chokri Belaid, an outspoken critic of the government, was gunned down outside his home in the capital.