Visitors pass Inkas Hudson and Sentry MPV armoured vehicles displayed at the Canadian International Auto Show in Toronto, Ontario, Canada February 18, 2020. REUTERS/Chris Helgren

Many parts of Venezuela still face daily power cuts lasting up to 18 hours, even though electricity has largely been restored after recent blackouts. embed code and instructions: https://reut.rs/2MPv6ur

An Israeli armoured personnel carrier (APC) drives on the Israeli side of the border between Israel and Gaza, May 29, 2018. REUTERS/Amir Cohen

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Piotr Lisek of Poland (silver), Sam Kendricks of the U.S. (gold) and Renaud Lavillenie of France (bronze) pose with the medals. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Piotr Lisek of Poland (silver), Sam Kendricks of the U.S. (gold) and Renaud Lavillenie of France (bronze) pose with the medals. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Piotr Lisek of Poland (silver), Sam Kendricks of the U.S. (gold) and Renaud Lavillenie of France (bronze) pose with the medals. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Sam Kendricks of the U.S. (gold) gestures as he poses with the medal. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Sam Kendricks of the U.S. (gold) poses with the medal. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Piotr Lisek of Poland (silver), Sam Kendricks of the U.S. (gold) and Renaud Lavillenie of France (bronze) pose with the medals. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Sam Kendricks of the U.S. (gold) poses with the medal. REUTERS/Toby Melville

Athletics - World Athletics Championships – men’s pole vault victory ceremony – London Stadium, London, Britain – August 9, 2017 – Sam Kendricks of the U.S. (gold) poses with the medal. REUTERS/Toby Melville

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Sam Kendricks of the U.S. reacts after winning the final. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. winning jump. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Sam Kendricks of the U.S. competes. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. winning jump. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Sam Kendricks of the U.S. celebrates after winning the final. REUTERS/Dylan Martinez

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France celebrates after the final. REUTERS/Dylan Martinez

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Piotr Lisek of Poland, Renaud Lavillenie of France and Sam Kendricks of the U.S. celebrate after the final. REUTERS/Dylan Martinez

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France reacts after the final. REUTERS/Dylan Martinez

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France gestures after the final. REUTERS/Dylan Martinez

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts to winning bronze with Valentin Lavillenie of France. REUTERS/Matthew Childs

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts to winning gold with Valentin Lavillenie of France. REUTERS/Matthew Childs

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France and Sam Kendricks of the U.S. react after the final. REUTERS/Matthew Childs

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates winning gold with silver medalist Piotr Lisek of Poland. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates winning gold with silver medalist Piotr Lisek of Poland. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates winning gold with silver medalist Piotr Lisek of Poland. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Sam Kendricks of the U.S. reacts after winning the final. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates winning gold with silver medalist Piotr Lisek of Poland (L) and bronze medalist Renaud Lavillenie of France (C). REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates winning gold with silver medalist Piotr Lisek of Poland (L) and bronze medalist Renaud Lavillenie of France (R). REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Sam Kendricks of the U.S. reacts after winning the final. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Piotr Lisek of Poland celebrates winning silver. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates gold with bronze medalist Renaud Lavillenie of France. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France gestures. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France gestures. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France competes. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates gold with bronze medalist Renaud Lavillenie of France. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates gold with bronze medalist Renaud Lavillenie of France. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France and Sam Kendricks of the U.S. react. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France and Sam Kendricks of the U.S. react. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Piotr Lisek of Poland gestures. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. in action. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Piotr Lisek of Poland competes. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. celebrates gold. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France gestures. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Sam Kendricks of the U.S. in action. REUTERS/John Sibley

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Sam Kendricks of the U.S. competes. REUTERS/Toby Melville

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts. REUTERS/Matthew Childs

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Changrui Xue of China reacts. REUTERS/Toby Melville

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Changrui Xue of China reacts. REUTERS/Toby Melville

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France in action. REUTERS/Toby Melville

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Renaud Lavillenie of France competes. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Renaud Lavillenie of France reacts. REUTERS/Kai Pfaffenbach

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Piotr Lisek of Poland in action. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Athletics - World Athletics Championships - Men's Pole Vault Final – London Stadium, London, Britain - August 8, 2017. Armand Duplantis of Sweden in action. REUTERS/Kai Pfaffenbach TPX IMAGES OF THE DAY

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Axel Chapelle of France competes. REUTERS/Dylan Martinez

Athletics - World Athletics Championships –men’s pole vault final – London Stadium, London, Britain – August 8, 2017 – Pawel Wojciechowski of Poland competes. REUTERS/Dylan Martinez