The Dutch government is facing an unusual crisis: Prison undercrowding. There are now more guards and other prison staff than there are prisoners in the Netherlands for the first time, according to data released by the Justice Ministry. In 2008, there were around 15,000 inmates, in a country of 17 million. As of March of this year, there were just 9,710 inmates remaining, compared with 9,914 guards. And the number of inmates included 650 Belgian criminals the Netherlands is housing as part of a temporary deal. In the U.S., the figure is more like one guard or staff member per five prisoners. The overall U.S. incarceration rate is more than 10 times higher. Justice Ministry spokesman Jochgem van Opstal said we're studying what the reason for the decline is." The ministry is already in the process of closing prisons and cutting 3,500 staff. Last week, labor union Abvakabo FNV slammed the cuts, saying they were leading to "staffing shortages." "At this moment you can't say there is any safety in Dutch prisons," union leader Corrie van Brenk said in an interview with Dutch broadcaster NOS. "It's an explosive situation." The government has rejected the criticism, saying violent incidents at prisons have been declining. One change politicians are considering is ending a practice of granting probation to criminals once they have served two-thirds of their sentences.