John Pumrey, 40, operates a wire line truck used for detecting the metal casings used in gas wells, they are then removed and the well is plugged with cement, Roan County, West Virginia, U.S., May 17, 2021. Picture taken May 17, 2021. REUTERS/Dane Rhys 

A view shows a metal detection arche at the new terminal of Volgograd International Airport, Russia May 8, 2018. REUTERS/Tatyana Makeyeva 

A special carpet, developed by Swiss company Sedect, that detect metallic parts in passengers shoes and accessories before they pass the security gates is seen at Cointrin airport in Geneva, Switzerland, November 24, 2016. REUTERS/Denis Balibouse 

A staff demonstrates a special carpet, developed by Swiss company Sedect, that detect metallic parts in passengers shoes and accessories before they pass the security gates, at Cointrin airport in Geneva, Switzerland, November 24, 2016. REUTERS/Denis Balibouse 

A staff demonstrates a special carpet, developed by Swiss company Sedect, that detect metallic parts in passengers shoes and accessories before they pass the security gates, at Cointrin airport in Geneva, Switzerland, November 24, 2016. REUTERS/Denis Balibouse 

A Secret Service member uses a metal detector wand on a member of the media in the basement before Republican presidential nominee Donald Trump's Republican Leadership Initiative round table meeting at Trump Tower in the Manhattan borough of New York, U.S., August 25, 2016. REUTERS/Carlo Allegri 

Comedian Bill Cosby touches the metal detector after bumping into it as he arrives at the Montgomery County Courthouse for a preliminary hearing related to assault charges, May 24, 2016, in Norristown, Pennsylvania, U.S.. REUTERS/Dominick Reuter/POOL TPX IMAGES OF THE DAY 

Football Soccer - France v Russia - International Friendly - Stade de France stadium, Saint-Denis, France - 29/03/16. Security personnel check people entering the stadium. REUTERS/Benoit Tessier 

Football Soccer - France v Russia - International Friendly - Stade de France stadium, Saint-Denis, France - 29/03/16. Security personnel check people entering the stadium. REUTERS/Benoit Tessier 

A street sign marks the end of the small Luxembourg village of Schengen January 27, 2016. The Schengen Agreement with the goal to eliminate internal border controls was signed on June 14, 1985 in the small village at the river Moselle and the tripoint of France, Germany and Luxembourg between the five countries of Belgium, France, Germany, Luxembourg and the Netherlands. European Union interior ministers are to discuss extending temporary border controls in the passport-free Schengen zone to control migration flows, as well as identity document fraud following France's request to improve the detection of fake Syrian passports used by people trying to get into Europe. REUTERS/Wolfgang Rattay 

Investigators look for evidence after a suicide bomber blew himself up close to a police checkpoint in Peshawar, Pakistan January 19, 2016. REUTERS/Fayaz Aziz TPX IMAGES OF THE DAY

A Secret Service agent (L), with a handheld metal detector checks passers-by as U.S. President Barack Obama finishes a round of golf with friends across the street at the Mid-Pacific Country Club in Kailua, Hawaii, December 28, 2015. REUTERS/Jonathan Ernst 

A UN mine disposal expert from Cambodia walks while holding a mine detector during a media tour in the UN-controlled buffer zone near the village of Mammari, Cyprus August 26, 2015. REUTERS/Yiannis Kourtoglou 

Security personnel sweep the infield with metal detectors after the first morning session and ahead of the opening ceremony during the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach 

Security personnel sweep the infield with metal detectors after the first morning session and ahead of the opening ceremony during the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach 

Security personnel sweep the infield with metal detectors after the first morning session and ahead of the opening ceremony during the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach 

Security personnel sweep the infield with metal detectors after the morning session on the first day of the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach 

Security personnel sweep the infield with metal detectors after the first morning session and ahead of the opening ceremony during the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach 

Security personnel sweep the infield with metal detectors after the morning session on the first day of the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach

Security personnel sweep the infield with metal detectors after the morning session on the first day of the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/Kai Pfaffenbach (CHINA - Tags: SPORT ATHLETICS)

Security personnel march onto the track carrying metal detectors after the morning session on the first day of the 15th IAAF World Championships at the National Stadium in Beijing, China August 22, 2015. REUTERS/David Gray 

An inmate is searched before leaving prison, near the southern city of Beersheba, Israel, to volunteer at ALEH Negev-Nahalat Eran Rehabilitation Village for young adults with severe disabilities and special needs, August 11, 2015. Some 15 prisoners are involved in the program that started in 2007 in which they volunteer to work with ALEH Negev residents. REUTERS/Amir Cohen 

Imam Yasin Abu Bakr, leader of the Jamaat al Muslimeen organization responsible for a 1990 attempted coup against the then-government of Prime Minister A.N.R. Robinson, is checked by a security guard before entering the Magistrates Court in Port of Spain, Trinidad, July 27, 2015. Abu Bakr was entering the court to visit eleven members of his organization who are charged with the murder of former Senator and state prosecutor, Dana Seetahal, in May 2014. Today marks the 25th anniversary of the coup led by Abu Bakr for which he was granted amnesty from prosecution during negotiations to end a hostage crisis. REUTERS/Andrea De Silva 

Rescuer Yulia Borisova wears anti-exposure garment for mine clearing during a training session at the rescuers' base in the Russian Siberian city of Krasnoyarsk, March 2, 2015. Borisova, aged 44, master of sports in alpinism and former Russian champion in mountaineering, is the only female member of the "Spasatel" (Rescuer) state regional search and rescue service group. Dedicated and professional members of the service are trained to save people injured or aggrieved by natural, technogenic and transport accidents on water, in mountains, caves, on rocks including earthquakes, avalanches, fires, explosions. Millions of Russian men will acknowledge the women they love by presenting flowers and souvenirs to them on the International Women's Day marked on March 8. Picture taken March 2, 2015. REUTERS/Ilya Naymushin (RUSSIA - Tags: DISASTER ENVIRONMENT SOCIETY) 

A warning sign is seen as a member of the Humanitarian Demining Battalion of the Columbian Army searches for landmines in Cocorna, Antioquia March 3, 2015. According to the United Nations Mines Action Service, Colombia has the second highest number of victims from landmines in the world, after Afghanistan. The sign reads, "Danger mines. Do not enter. Keep away." REUTERS/Fredy Builes (COLOMBIA - Tags: POLITICS CIVIL UNREST MILITARY) 

A member of the Humanitarian Demining Battalion of the Columbian Army searches for landmines in Cocorna, Antioquia March 3, 2015. According to the United Nations Mines Action Service, Colombia has the second highest number of victims from landmines in the world, after Afghanistan. REUTERS/Fredy Builes (COLOMBIA - Tags: POLITICS CIVIL UNREST MILITARY) 

Members of volunteer group Hisbah screen Muslim worshippers heading for Friday prayers in Miyetti, Gombe January 30, 2015. Volunteers are trying to heighten security around several mosques in Gombe following an attack outside a mosque during prayers by Boko Haram militants. REUTERS/ Afolabi Sotunde (NIGERIA - Tags: CIVIL UNREST) 

A man with a gun and a metal detector poses for photographers (unseen) while he stands outside a school after it reopened in Peshawar January 12, 2015. Children streamed back to school across Pakistan on Monday in an anxious start to a new term following last month's massacre of 134 students at an army-run school in the volatile northwestern city of Peshawar. Most schools across the country of 180 million had been shut until Monday for an extended winter break in the aftermath of the Dec. 16 attack when Taliban militants broke into Army Public School and methodically killed the children. REUTERS/Khuram Parvez (PAKISTAN - Tags: EDUCATION CIVIL UNREST) 

An Afghan soldier uses a mine detector during a demining drill at Camp Shaheen, a training facility for the Afghan National Army (ANA), west of Mazar-i-Sharif December 13, 2014. REUTERS/John MacDougall/Pool (AFGHANISTAN - Tags: MILITARY) 

An Afghan soldier takes part in a demining drill at Camp Shaheen, located west of Mazar-i-Sharif, December 13, 2014. REUTERS/John MacDougall/Pool (AFGHANISTAN - Tags: MILITARY) 

Nine-year old-Lucie Bach uses a metal detector to look for gold on the outer harbour beach at Folkestone in southeast England September 4, 2014. German artist Michael Sailstorfer has buried 30 pieces of 24-carat gold as part of a conceptual piece of art "Folkestone Digs", for the Folkestone Triennial 2015 art festival. REUTERS/Luke MacGregor (BRITAIN - Tags: ENVIRONMENT SOCIETY ENTERTAINMENT) 

A man uses a metal detector to look for gold on the outer harbour beach at Folkestone in southeast England September 4, 2014. German artist Michael Sailstorfer has buried 30 pieces of 24-carat gold as part of a conceptual piece of art "Folkestone Digs", for the Folkestone Triennial 2015 art festival. REUTERS/Luke MacGregor (BRITAIN - Tags: ENVIRONMENT SOCIETY ENTERTAINMENT) 

An explosive investigator carries a bomb detector as the police search for possible bombs in front of the presidential palace in Cairo June 30, 2014. Two Egyptian police officers were killed on Monday while trying to defuse makeshift bombs planted near Cairo's presidential palace by Islamist militants close to the anniversary of the army's overthrow of an elected Islamist president. REUTERS/Asmaa Waguih (EGYPT - Tags: POLITICS CIVIL UNREST CRIME LAW) 

Police officers take up position inside a shopping mall to stop protests against military at a shopping district in Bangkok June 1, 2014. Thailand's military government sent thousands of troops and police into central Bangkok on Sunday to stop any demonstrations against its seizure of power, and some shopping malls and train stations closed to avoid trouble. REUTERS/Erik De Castro (THAILAND - Tags: POLITICS CIVIL UNREST) 

A member of the Fuerza Civil (Civil Force) police unit uses a metal detector as he plays around with a boy at the entrance of an exhibition at Fundidora park in Monterrey April 20, 2014. The exhibition aimed to show visitors the capabilities of the Fuerza Civil, a tactical team of the police unit trained by the army, created by the Nuevo Leon government in 2011 to curb down corruption and infiltration by drug gangs in the police corps, local media reported. REUTERS/Daniel Becerril (MEXICO - Tags: SOCIETY CRIME LAW) 

Professional skateboarder Tony Hawk skates with one of his Twitter hunt boxes as he prepares for his global Twitter treasure hunt near his office in Vista, California April 16, 2014. On April 19, Hawk will use the hash tag #THTH14 via Twitter to send out clues to his millions of followers where to search for the hidden prizes. REUTERS/Mike Blake (UNITED STATES - Tags: SOCIETY SPORT ENTERTAINMENT TPX IMAGES OF THE DAY) 

Matt Lichtenberger wades out into the still partially frozen Lake Michigan to look for valuables with a metal detector in Chicago, March 21, 2014. After a winter of record low temperatures, spring weather is slowly moving into the area. REUTERS/Jim Young (UNITED STATES - Tags: SOCIETY ENVIRONMENT) 

Police use metal detectors outside the Great Hall of the People at Tiananmen Square during the opening session of the National People's Congress (NPC) in Beijing March 5, 2014. REUTERS/Kim Kyung-Hoon (CHINA - Tags: POLITICS) 

Security service members use mine and metal detectors as they work near the building of a high school, where a shooting incident has occurred, on the outskirts of Moscow, February 3, 2014. A Moscow high-school student shot a teacher and a police officer dead and held more than 20 other students hostage in a classroom on Monday before he was disarmed and detained, police said, just days before Russia hosts the Winter Olympics. REUTERS/Maxim Shemetov (RUSSIA - Tags: CRIME LAW EDUCATION) 

A Seattle Seahawks fan goes through security before the start of the NFL Super Bowl XLVIII football game in East Rutherford, New Jersey, February 2, 2014. REUTERS/Andrew Kelly (UNITED STATES - Tags: SPORT FOOTBALL)

A man undergoes a metal detector as people wait for New Year's Eve celebrations in Times Square in New York, December 31, 2013. REUTERS/Zoran Milich (UNITED STATES - Tags: SOCIETY ANNIVERSARY) 

Security personnel and policemen check a man and his belongings in the main railway station in Volgograd December 31, 2013. President Vladimir Putin on Tuesday vowed to annihilate all "terrorists" following two deadly bomb attacks in the southern Russian city of Volgograd that raised security fears ahead of the Winter Olympics.REUTERS/Vasily Fedosenko (RUSSIA - Tags: CIVIL UNREST CRIME LAW DISASTER TRANSPORT) 

Runners pass through scanners as they are checked by New York Police Department officers upon arrival for the New York City Marathon on Staten Island, New York November 3, 2013. In addition to cheering supporters, runners in this Sunday's New York City Marathon will also be monitored by bomb-sniffing dogs, police scuba divers and surveillance helicopters to prevent an attack similar to the one at the Boston race earlier this year. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT ATHLETICS) 

New York Police Department officers perform a security sweep on runners arriving to take part in the New York City Marathon, November 3, 2013. REUTERS/Lucas Jackson (UNITED STATES - Tags: SPORT ATHLETICS) 

A Syrian army soldier loyal to Syria's President Bashar al-Assad checks for mines during what they said was military operation on the road to Khanaser town to clean the roads from mines and improvised explosives in Al-Qabtin in Aleppo province October 8, 2013. Picture taken October 8, 2013. REUTERS/George Ourfalian (SYRIA - Tags: CONFLICT MILITARY) 

A security official uses a metal detector to survey the site of a bomb blast in the outskirts of Peshawar October 7, 2013. A bomb that exploded near a polio vaccination team in the volatile northwestern Pakistani city of Peshawar on Monday killed at least two people, and possibly as many as six, police said, the latest in a string of attacks against health workers. REUTERS/Fayaz Aziz (PAKISTAN - Tags: CIVIL UNREST CRIME LAW HEALTH) 

A police officer searches a supporter of Egypt's military after he passed through a metal detector at an entrance to Tahrir square as people gathered to celebrate the anniversary of an attack on Israeli forces during the 1973 war, in Cairo October 6, 2013. REUTERS/Mohamed Abd El Ghany (EGYPT - Tags: POLITICS CIVIL UNREST) 

A mudlark uses a metal detector to search for items of value along the South Pier in Blackpool, northern England August 20, 2013. REUTERS/Stefan Wermuth (BRITAIN - Tags: SOCIETY) 

Excavation expert Juan Diaz works with an excavator in search of gold bullion believed to have been buried during the 1864-1870 War of the Triple Alliance, at a site in Aldana Canada city, 29 kilometers from Asuncion August 4, 2013. REUTERS/Jorge Adorno (PARAGUAY - Tags: POLITICS CIVIL UNREST CONFLICT) 

Tim Lambesis, lead singer for the heavy metal band As I Lay Dying, is arraigned in San Diego North County court in Vista, California May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT) 

Tim Lambesis (L), lead singer for the heavy metal band As I Lay Dying, is arraigned in San Diego North County court in Vista, California May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT) 

Tim Lambesis (L), lead singer for the heavy metal band As I Lay Dying, looks on during his arraignment in San Diego North County court in Vista, California May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT HEADSHOT PROFILE) 

Tim Lambesis (C), lead singer for the heavy metal band As I Lay Dying, enters the courtroom for his arraignment in San Diego North County court in Vista, California May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT) 

Tim Lambesis (bottom), lead singer for the heavy metal band As I Lay Dying, looks on during his arraignment in San Diego North County court in Vista, California May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT HEADSHOT PROFILE) 

Tim Lambesis, lead singer for the heavy metal band As I Lay Dying, looks on during his arraignment in San Diego North County court in Vista, California May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT HEADSHOT PROFILE) 

Tim Lambesis (R), lead singer for the heavy metal band As I Lay Dying, listens to his lawyer Anthony Salerno speak during his arraignment in San Diego North County court in Vista, California, May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT) 

Tim Lambesis, lead singer for the heavy metal band As I Lay Dying, follows his lawyer Anthony Salerno into the courtroom for his arraignment in San Diego North County court in Vista, California, May 9, 2013. Lambesis was arrested in California on Tuesday on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. Lambesis was taken into custody in Oceanside, near San Diego, said San Diego County Sheriff's Department spokeswoman Jan Caldwell. REUTERS/Lenny Ignelzi/Pool (UNITED STATES - Tags: CRIME LAW SOCIETY ENTERTAINMENT) 

Singer Tim Lambesis of As I Lay Dying performs at the 2nd annual Golden Gods awards in Los Angeles, in this April 8, 2010 file photo. Lambesis, lead singer for the heavy metal band As I Lay Dying, was arrested in California on May 7, 2013 on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. REUTERS/Mario Anzuoni/Files (UNITED STATES - Tags: ENTERTAINMENT CRIME LAW) 

Singer Tim Lambesis of As I Lay Dying performs at the 2nd annual Golden Gods awards in Los Angeles, in this April 8, 2010 file photo. Lambesis, lead singer for the heavy metal band As I Lay Dying, was arrested in California on May 7, 2013 on charges that he sought the help of an undercover detective to have his estranged wife killed, police said. REUTERS/Mario Anzuoni/Files (UNITED STATES - Tags: ENTERTAINMENT CRIME LAW) 

An armed guard stands outside the house of Haroon Bilour, an Awami National Party (ANP) candidate for the upcoming elections, in Peshawar May 2, 2013. Since April, the Pakistani Taliban have killed more than 70 people in attacks targeting three major political parties - the Awami National Party (ANP), the Pakistan People's Party (PPP) and the Muttahida Quami Movement (MQM), preventing many of their most prominent candidates from openly campaigning. The Taliban say they are targeting "secular" parties and that elections only "serve the interests of infidels and enemies of Islam". Picture taken May 2, 2013. To match PAKISTAN-ELECTION/VIOLENCE REUTERS/Zohra Bensemra (PAKISTAN - Tags: POLITICS ELECTIONS CIVIL UNREST)