A step too far?
D018480:Astronauts / Q000191:economics / Q000331:legislation & jurisprudence / Q000639:trends; D035082:Federal Government; D013026:Space Flight / Q000191:economics* / Q000331:legislation & jurisprudence / Q000639:trends*; D014481:United States; D018557:United States National Aeronautics and Space Administration / Q000191:economics / Q000331:legislation & jurisprudence / Q000458:organization & administration