Saudi Arabia stopped issuing public warnings of imminent military attacks days before a series of deadly strikes on Riyadh airport that killed at least 18 people and wounded more than 300.The government has not said why there were no alerts to the public before the four Riyadh attacks in the past week.The warnings had served to highlight the violence undermining the kingdom's efforts to project an image of calm to its people and the world during its war with Yemen's Iran-aligned Houthis.Their a...
