U.S. President Joe Biden and first lady Jill Biden arrive at Stansted Airport to attend Monday’s funeral of Britain's Queen Elizabeth in London, Britain, September 17, 2022. REUTERS/Kevin Lamarque 

U.S. President Joe Biden and first lady Jill Biden step from Air Force One upon arrival at Stansted Airport to attend Monday’s funeral of Britain's Queen Elizabeth in London, Britain, September 17, 2022. REUTERS/Kevin Lamarque 

U.S. President Joe Biden and first lady Jill Biden step from Air Force One upon arrival at Stansted Airport to attend Monday’s funeral of Britain's Queen Elizabeth in London, Britain, September 17, 2022. REUTERS/Kevin Lamarque 

British Prime Minister Boris Johnson boards a plane bound to Stockholm, at the London Stansted Airport, Britain, May 11, 2022. Frank Augstein/Pool via REUTERS 

British Prime Minister Boris Johnson boards a plane to visit Sweden and Finland, at London Stansted Airport, Britain, May 11, 2022. Frank Augstein/Pool via REUTERS 

British Prime Minister Boris Johnson arrives at London Stansted Airport to visit Sweden and Finland, Britain, May 11, 2022. Frank Augstein/Pool via REUTERS 

British Prime Minister Boris Johnson reacts as he boards a plane to visit Sweden and Finland, at London Stansted Airport, Britain, May 11, 2022. Frank Augstein/Pool via REUTERS 

British Prime Minister Boris Johnson arrives at London Stansted Airport to visit Sweden and Finland, Britain, May 11, 2022. Frank Augstein/Pool via REUTERS 

British Prime Minister Boris Johnson walks to board a plane to Brussels, Belgium to take part in a NATO summit to discuss Russia's invasion of Ukraine, at London Stansted airport, Britain March 24, 2022. REUTERS/Henry Nicholls 

British Prime Minister Boris Johnson walks to board a plane to Brussels, Belgium to take part in a NATO summit to discuss Russia's invasion of Ukraine, at London Stansted airport, Britain March 24, 2022. REUTERS/Henry Nicholls 

British Prime Minister Boris Johnson boards a plane to Brussels, Belgium to take part in a NATO summit to discuss Russia's invasion of Ukraine, at London Stansted airport, Britain March 24, 2022. REUTERS/Henry Nicholls 

British Prime Minister Boris Johnson boards a plane to Brussels, Belgium to take part in a NATO summit to discuss Russia's invasion of Ukraine, at London Stansted airport, Britain March 24, 2022. REUTERS/Henry Nicholls 

British Prime Minister Boris Johnson boards a plane to Brussels, Belgium to take part in a NATO summit to discuss Russia's invasion of Ukraine, at London Stansted airport, Britain March 24, 2022. REUTERS/Henry Nicholls 

British Prime Minister Boris Johnson boards a plane to Brussels, Belgium to take part in a NATO summit to discuss Russia's invasion of Ukraine, at London Stansted airport, Britain March 24, 2022. REUTERS/Henry Nicholls 

Boeing C-32A plane carrying U.S. Secretary of State Antony Blinken arrives at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

Yael Lempert, charge d'affaires at U.S. Embassy, London and John Holloway, UK representative from the Foreign and Commonwealth office, greet U.S. Secretary of State Antony Blinken at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

Yael Lempert, charge d'affaires at U.S. Embassy, London and John Holloway, UK representative from the Foreign and Commonwealth office, greet U.S. Secretary of State Antony Blinken at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

Yael Lempert, charge d'affaires at U.S. Embassy, London greets U.S. Secretary of State Antony Blinken at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

U.S. Secretary of State Antony Blinken disembarks after landing at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

U.S. Secretary of State Antony Blinken disembarks after landing at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

U.S. Secretary of State Antony Blinken gestures as he disembarks after landing at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

U.S. Secretary of State Antony Blinken gestures as he disembarks after landing at Stansted Airport, outside London, Britain May 2, 2021 ahead of the upcoming G7 foreign ministers meeting. Ben Stansall/Pool via REUTERS 

U.S. Secretary of State Mike Pompeo departs Stansted Airport in Stansted, Britain, January 30, 2020. REUTERS/Kevin Lamarque/POOL 

U.S. Secretary of State Mike Pompeo departs Stansted Airport in Stansted, Britain, January 30, 2020. REUTERS/Kevin Lamarque/POOL 

U.S. Secretary of State Mike Pompeo arrives at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo and his wife Susan Pompeo arrive at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo arrives at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. Secretary of State Mike Pompeo arrives at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Clodagh Kilcoyne 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay TPX IMAGES OF THE DAY 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria TPX IMAGES OF THE DAY 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

A security officer chases a soldier's hat after U.S. President Donald Trump and First Lady Melania Trump arrived for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

A Marine One helicopter lands near Winfield House during U.S. President Donald Trump's state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria 

Britain's Foreign Secretary Jeremy Hunt speaks to the media after U.S. President Donald Trump and First Lady Melania Trump arrived for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive aboard Air Force One for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

Marine One is seen in the air after U.S. President Donald Trump arrived for his state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

Marine One is seen in the air after U.S. President Donald Trump arrived for his state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria 

U.S. President Donald Trump and First Lady Melania Trump board Marine One as they arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

Marine One is seen in the air after U.S. President Donald Trump arrived for his state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Hannah McKay 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria 

U.S. President Donald Trump and First Lady Melania Trump arrive for their state visit to Britain, at Stansted Airport near London, Britain, June 3, 2019. REUTERS/Carlos Barria