Protesters take part in a rally during a 24-hour labor strike, in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

Protesters take part in a rally during a 24-hour labor strike, in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

A protester raises a flag of the Greek communist party-affiliated PAME labor union during a rally in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

A man rides his motorcycle during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

Protesters block the entrance of a passenger ferry during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

A passenger walks past protesters blocking the entrance of a passenger ferry during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

A homeless man sleeps outside a closed entrance of Syntagma metro station during a 24-hour labour strike in Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

Protesters take part in a rally during a 24-hour labor strike, in front of the parliament in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

Protesters march to the parliament during a 24-hour labor strike in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

Protesters march to the parliament during a 24-hour labor strike in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

Passengers make their way during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

Protesters block the entrance of a passenger ship during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

Protesters shout slogans as they take part in a rally during a 24-hour labor strike, in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

Supporters of the Greek communist party-affiliated PAME labor union march during a rally in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

Supporters of the Greek communist party-affiliated PAME labor union march in front of the parliament, in Athens, Thursday, June 10, 2021. Widespread strikes in Greece brought public transport and other services to a halt Thursday, as the country's largest labor unions protested against employment reforms they argue will make flexible workplace changes introduced during the pandemic more permanent. (AP Photo/Michael Varaklas)

A man jogs during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)

Passengers stand at the entrance of a ship which is blocked by protesters during a 24-hour labour strike at the port of Piraeus, near Athens, Thursday, June 10, 2021. Greece's biggest labor unions stage a 24-hour strike to protest a draft labor bill being debated in parliament, which workers say will erode their rights. (AP Photo/Michael Varaklas)