France has announced a wave of “exceptional measures” to combat terrorism in the wake of the attacks earlier this month on Charlie Hebdo magazine and a kosher supermarket. Prime Minister Manuel Valls said the government will spend the equivalent of $490 million over three years and hire more than 2,600 new staff. The plan includes a major increase in surveillance, including a measure easing the use of phone taps. The news comes as France has detained four people charged with aiding supermarket shooter Amedy Coulibaly.