CAIRO (Reuters) - Egypt announced a criminal investigation on Saturday against deposed Islamist President Mohamed Mursi, with prosecutors saying they were examining complaints of spying, inciting violence and ruining the economy. Egypt's first freely elected leader has been held at an undisclosed location since the army removed him from power on July 3, but has not yet been charged with any crime. In recent days, Washington has called for him to be freed and for the authorities to stop arresting leaders of his Muslim Brotherhood. The public prosecutor's office said in a statement it had received complaints against Mursi, eight...