Massive policing for Paris Olympics to include security checks for some of the capital's residents

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Special anti-terrorism measures being put in place to safeguard the unprecedented opening ceremony for the Paris Olympics on the River Seine will also apply to all buildings along the route, meaning people who work and live there and their guests will be subjected to background security checks, Paris police chief Laurent Nunez said Thursday.

Those affected will be cross-checked against security services' databases, to see whether they have previously been flagged as suspected Islamist extremists or for other radicalism, Nunez said.

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A gendarmes patrol in front of the Charles de Gaulle airport, terminal 1, where the Olympic rings were installed, in Roissy-en-France, north of Paris, Tuesday, April 23, 2024 in Paris.  (AP Photo/Thibault Camus)

The wildly ambitious July 26 ceremony is proving to be a gargantuan security challenge. Athletes will be paraded through the heart of the French capital on 94 boats along a 6-kilometer (nearly 4-mile) stretch of the Seine, from east to west. They'll be accompanied by 87 other boats for security, media and other people.

All of the parade route will be inside a high-security zone that Nunez described as an "anti-terrorism perimeter." He said it will include the first row of buildings along the route.

"We wanted to include in the perimeter all of the buildings that have a view on the parade," Nunez said.

The zone will be put in place from July 18 and be extended even further along both banks of the river on July 26, in the final hours before the evening ceremony.

Anyone who wants to enter the zone in the eight days before the ceremony and on