If you were to pick a quintessential 1980s movie, Tony Scott's 'Top Gun' would come pretty high up the list. Scott's movie was big. It was gung ho. It had Tom Cruise, the hottest young star in Hollywood. The film was pretty much emblematic of Reagan's America. It was also the product of a country that was pretty assured about its place in the world in spite of Vietnam. It's taken 36 years for a 'Top Gun' sequel to materialise but in the intervening years the United States has become more insecure. After the polarised politics of the Clinton, Bush and Obama era, the wrecking ball years of the Trump Presidency and the mess that Joe Biden has inherited, the country hasn't seemed this ill at ease since Herbert Hoover and the Great Depression. A nation divided has seen stock tumble internationally. Old Cold War certainties have gone. America's international rivals are wide and varied including Russia and China, while Islamic fundamentalist terror gr