Barnett's career in journalism started in high school in Arizona when the in-school program, Channel One News, selected him to join their annual 'Student Produced Week' in Los Angeles.

CNN: About

If new schools join the plan, you get retroactive benefits--your previous contributions lock in whatever tuition the new school charged when you invested, at a discount equal to the median discount schools in the plan offered that year.

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Callum intends to join the RAF but for the moment is enjoying positive feedback at Lord Williams School in Thame for his record-breaking flight.

BBC: Boy, 14, 'youngest person' in UK to fly glider solo