Twenty US cities are vying a $5bn investment and 50,000 jobs, so are the movements of the CEO’s aircraft, N-271DV, the key to HQ2? The tail number of Jeff Bezos’ $75m, 18-seat Gulfstream G650ER jet may provide the best clue yet of Amazon’s choice for a second US headquarters, otherwise known as HQ2. Related: 'Not welcome here': Amazon faces growing resistance to its second home Continue reading...