The announcement that two American tourists are facing trial for committing crimes against the state comes in the wake of Pyongang's defiance of a U.N. ban on firing short-range ballistic missiles. North Korea has arrested foreign tourists in the past, often using such detentions to procure visits by high-ranking figures, notably former U.S. President Bill Clinton in 2009.
Background:
North Korea says to try two detained U.S. citizens [Reuters]
North Korea plans to indict two Americans [New York Times]