USA-280 (codenamed "Zuma") was a classified United States government satellite that was launched by SpaceX on 8 January 2018. The specific agency in charge of the Zuma project has not been disclosed, nor its purpose. In November 2017, Northrop Grumman stated that the launch "is a monumental responsibility and has taken great care to ensure the most affordable and lowest risk scenario for Zuma." The Wall Street Journal reported that the design was very sensitive to vibration and sudden shocks, and had a development cost approaching US$3.5 billion.