Ammunition from manufacturers like Hornady, Winchester, Remington and Federal Ammunition on the shelves at Frontier Arms & Supply gun shop in Cheyenne, Wyoming, U.S. March 18, 2020. REUTERS/Jim Urquhart

Ammunition from manufacturers like Hornady, Winchester, and Remington on the shelves at Frontier Arms & Supply gun shop in Cheyenne, Wyoming, U.S. March 18, 2020. REUTERS/Jim Urquhart

Ammunition from manufacturers like Sig Sauer, Winchester, Remington and Federal Ammunition on the shelves at Frontier Arms & Supply gun shop in Cheyenne, Wyoming, U.S. March 18, 2020. REUTERS/Jim Urquhart

A member of the UAE armed forces exits a GlobalEye aircraft, manufactured by Saab Technologies, on static display during the fifth day of Dubai Air Show in Dubai, United Arab Emirates November 21, 2019. Picture taken November 21, 2019. REUTERS/Christopher Pike

Lt. General Hamad Mohammed Thani Al Rumaithi, Chief of Staff of the UAE's Armed Forces, tours a GlobalEye aircraft, manufactured by Saab Technologies, on static display during the fifth day of Dubai Air Show in Dubai, United Arab Emirates November 21, 2019. Picture taken November 21, 2019. REUTERS/Christopher Pike

Lt. General Hamad Mohammed Thani Al Rumaithi, Chief of Staff of the UAE's Armed Forces, is greeted after touring a GlobalEye aircraft, manufactured by Saab Technologies, on static display during the fifth day of Dubai Air Show in Dubai, United Arab Emirates November 21, 2019. Picture taken November 21, 2019.REUTERS/Christopher Pike

Lt. General Hamad Mohammed Thani Al Rumaithi, Chief of Staff of the UAE's Armed Forces tours a GlobalEye aircraft, manufactured by Saab Technologies, on static display during the fifth day of Dubai Air Show in Dubai, United Arab Emirates November 21, 2019. Picture taken November 21, 2019. REUTERS/Christopher Pike

A Palestinian man carries a briquette from olive pomace that is obtained from the olive oil extraction process and used as an energy source, at an olive press factory in the southern Gaza Strip October 20, 2019. Picture taken October 20, 2019. REUTERS/Ibraheem Abu Mustafa

A potter makes earthenware oil lamps or "Diyo" used to decorate temples and homes ahead of Tihar festival, also called Diwali, the Hindu festival of lights, in Bhaktapur, Nepal October 20, 2019. REUTERS/Navesh Chitrakar

A potter makes earthenware oil lamp or "Diyo" used to decorate temples and homes ahead of Tihar festival, also called Diwali, the Hindu festival of lights, in Bhaktapur, Nepal October 20, 2019. REUTERS/Navesh Chitrakar

Chef Herilalaina Ravelomanana prepares a plate with Rova caviar at the Marais restaurant in Antananarivo, Madagascar, September 9, 2019. Picture taken September 9, 2019. REUTERS/Baz Ratner

The sugar concentration in juice of Riesling grapes at about 80 degrees at Oechsle scale is displayed in a refractometer before the harvest of grapes at the Weingarten vineyard at Berlin's district Kreuzberg Friedrichshain, Germany, September 11, 2019. Since 1968 the local department of the Environment and Nature of Berlin's district Kreuzberg planted over decades about 300 Riesling and Pinot Noir grapevines, which now produce each year a stable vintage of about 400 kilograms. REUTERS/Fabrizio Bensch

An employee of the famous snack bar "Konnopke's Imbiss" prepares typical German Currywurst (curried sausage) in Berlin, Germany, September 3, 2019. Picture taken September 3, 2019. REUTERS/Hannibal Hanschke

Typical German Currywurst (curried sausage) is pictured in Berlin, Germany, September 3, 2019. Picture taken September 3, 2019. REUTERS/Hannibal Hanschke

Typical German Currywurst (curried sausage) is pictured in Berlin, Germany, September 3, 2019. Picture taken September 3, 2019. REUTERS/Hannibal Hanschke

A worker picks coffee fruits at a plantation in Pueblorrico, Colombia March 11, 2019. Picture taken March 11, 2019. REUTERS/Luisa Gonzalez

Meat products are pictured in an EDEKA supermarket in Berlin, Germany, August 9, 2019. REUTERS/Fabrizio Bensch

Meat products are pictured in an EDEKA supermarket in Berlin, Germany, August 9, 2019. REUTERS/Fabrizio Bensch

A dish including a piece of lab-grown steak produced from cow cells by Israeli company Aleph Farms, is seen as it is prepared by a chef during a demonstration for Reuters at the company office in Rehovot, Israel June 26, 2019. REUTERS/Amir Cohen

An employee makes mooncakes with anti-extradition bill slogans at Wah Yee Tang Bakery in Hong Kong, China July 12, 2019. REUTERS/Tyrone Siu

An employee makes mooncakes with anti-extradition bill slogans at Wah Yee Tang Bakery in Hong Kong, China July 12, 2019. REUTERS/Tyrone Siu

An employee makes mooncakes with anti-extradition bill slogans at Wah Yee Tang Bakery in Hong Kong, China July 12, 2019. REUTERS/Tyrone Siu

An employee poses with an anti-extradition mooncake with Chinese words "Support each other" at Wah Yee Tang Bakery in Hong Kong, China July 12, 2019. REUTERS/Tyrone Siu

An employee makes anti-extradition bill mooncakes at Wah Yee Tang Bakery in Hong Kong, China July 12, 2019. REUTERS/Tyrone Siu

REFILE - CORRECTING MONTH An employee rolls tobacco at the Corona tobacco factory in Havana, Cuba, July 3, 2019. REUTERS/Alexandre Meneghini

A farmer shows a Fall Army Worm in a maize field at Pak Chong district, Nakhon Ratchasima province, Thailand June 12, 2019. Picture taken on June 12, 2019. REUTERS/Soe Zeya Tun

A farmer shows a Fall Army Worm in a maize field at Pak Chong district, Nakhon Ratchasima province, Thailand June 12, 2019. Picture taken on June 12, 2019. REUTERS/Soe Zeya Tun

A farmer shows the remains of burned wheat, in al-Hamdaniya, near Mosul, Iraq June 12, 2019. Picture taken June 12, 2019. REUTERS/Azad Lashkari

A sample of industrial hemp seeds is shown at a research station site in Haysville, Kansas, U.S., May 2, 2019. Photo taken May 2, 2019. REUTERS/Julie Ingwersen

A Palestinian worker makes clay pots at a pottery workshop in Gaza City June 11, 2019. REUTERS/Mohammed Salem

A barista prepares coffee at a Juan Valdez store in Bogota, Colombia June 5, 2019. Picture taken June 5, 2019. REUTERS/Luisa Gonzalez

A Palestinian man prepares traditional cakes for sale ahead of Muslim holiday of Eid al-Fitr, which marks the end of the holy fasting month of Ramadan, in Nablus, in the Israeli-occupied West Bank June 2, 2019. REUTERS/Abed Omar Qusini TPX IMAGES OF THE DAY

A Palestinian man prepares traditional cakes for sale ahead of Muslim holiday of Eid al-Fitr, which marks the end of the holy fasting month of Ramadan, in Nablus, in the Israeli-occupied West Bank June 2, 2019. REUTERS/Abed Omar Qusini

Bread is baked before the time for iftar, or breaking fast, during the Muslim fasting month of Ramadan in the city of Idlib, Syria May 28, 2019. Picture taken May 28, 2019. REUTERS/Khalil Ashawi

Bread is baked before the time for iftar, or breaking fast, during the Muslim fasting month of Ramadan in the city of Idlib, Syria May 28, 2019. Picture taken May 28, 2019. REUTERS/Khalil Ashawi

A worker spreads strands of vermicelli, a specialty eaten during the Muslim holy fasting month of Ramadan, to dry at a factory in Chennai, India, May 28, 2019. REUTERS/P. Ravikumar

A Palestinian worker collects strawberries at a farm in Tubas, in the in the Israeli-occupied West Bank April 30, 2019. REUTERS/Raneen Sawafta

A vegetable seller grabs a handful of indian beans at a street market, in Buenos Aires, Argentina April 17, 2019. REUTERS/Agustin Marcarian

An employee piles boxes containing white champignons at Swiss mushroom producer Wauwiler Champignons AG in Wauwil, Switzerland April 11, 2019. Picture taken April 11, 2019. REUTERS/Arnd Wiegmann

The first asparagus is harvested at the Tannenhof farm of Rolf Meinhardt in Weiterstadt near Frankfurt, Germany, March 22, 2019. REUTERS/Kai Pfaffenbach

Sweets featuring election symbol of different Indian political parties are pictured inside a sweets making workshop on the outskirts of Kolkata, India, March 20, 2019. REUTERS/Rupak De Chowdhuri

Robotic arms weld together frames at Nissan Motor Co's automobile manufacturing plant in Smyrna, Tennessee, U.S., August 23, 2018. Picture taken August 23, 2018. REUTERS/William DeShazer

Robotic arms bring together car frames for welding at Nissan Motor Co's automobile manufacturing plant in Smyrna, Tennessee, U.S., August 23, 2018. Picture taken August 23, 2018. REUTERS/William DeShazer

Robotic arms bring together car frames for welding at Nissan Motor Co's automobile manufacturing plant in Smyrna, Tennessee, U.S., August 23, 2018. Picture taken August 23, 2018. REUTERS/William DeShazer

Employees of German weapons manufacturer Heckler & Koch, accused of illegally trafficking arms to Mexican federal states and their lawyers, pictured behind a sign that reads "Attention", attend the announcement of the verdict in their trial at the district court in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Employees of German weapons manufacturer Heckler & Koch, accused of illegally trafficking arms to Mexican federal states and their lawyers attend the announcement of the verdict in their trial at the district court in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activist Juergen Graesslin holds a placard that reads "Killing", part of the slogan "Killing with Heckler & Koch arms in Mexico, Make the victims voice heard" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activist Juergen Graesslin talks to journalists during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, beeing accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activist Juergen Graesslin talks to journalists during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Employees of German weapons manufacturer Heckler & Koch, accused of illegally trafficking arms to Mexican federal states and their lawyers attend the announcement of the verdict in their trial at the district court in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activist Juergen Graesslin attends a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activist Juergen Graesslin holds a placard that reads "Killing", part of the slogan "Killing with Heckler & Koch arms in Mexico, Make the victims voice heard" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activists hold a placard that reads "Killing with Heckler & Koch arms in Mexico, Make the victims voice heard" and "Dealing with the death" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, beeing accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activists hold placards that read "Dealing with the death" and "Stop arms trade" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activists hold placards that read "Dealing with the death" and "Stop arms trade" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

Peace activists hold a placard that reads "Stop arms trade" during a silent vigil in front of the district court prior to the trial of employees of German weapons manufacturer Heckler & Koch, being accused of illegally trafficking arms to Mexican federal states in Stuttgart, Germany, February 21, 2019. REUTERS/Ralph Orlowski

A confectioner soaks a piece of orange in a chocolate at Florian confectionery in Le Pont Du Loup, France, January 24, 2019. REUTERS/Eric Gaillard

A man prepares traditional candy in the "La Miel" candy store at the colonial city of Granada, Nicaragua January 22, 2019.REUTERS/Oswaldo Rivas

A worker covers firecrackers with gunpowder in a makeshift fireworks factory ahead of New Year celebrations in Bocaue, Bulacan province, Philippines, December 28, 2018. REUTERS/Eloisa Lopez TPX IMAGES OF THE DAY

A missile guidance system circuit board bearing the SHIG logo of Iranian arms manufacturer Shahid Hemmat Industries Group, which the U.S. Defense Department says proves the weapon was manufactured in Iran before the Pentagon says it was fired by Houthi rebels from Yemen into Saudi Arabia in July 2016, is seen under a magnifying glass as it sits on display at a military base in Washington, U.S., November 29, 2018. REUTERS/Al Drago