In an undated image provided by Planet Labs Inc., Chinese engineers erected an inflatable dome over the construction site of an underground missile silo, left, to hide the work below, while support facilities and temporary storage for construction equipment are seen at right. In the barren desert 1,200 miles west of Beijing, the Chinese government is digging a new field of what appears to be 110 silos for launching nuclear missiles — it is the second such field discovered by analysts studying commercial satellite images in recent weeks. (Planet Labs Inc. via The New York Times)
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