Officials decided not to rebuild the collapsed cross-over gate, which allows fans to travel between the stands and the infield before races.

WSJ: Track Set for Daytona Race After Crash

Larson's car appeared to hit where the cross-over gate a section that can be opened for people to travel back and forth from the infield to the grandstands is located in the fence.

NPR: Fans Injured When Car Sails Into Fence At Daytona

The key that locks the door against terrorists also opens a wider gate to cross-border trade and travel.

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The great-grandfather, who is originally from New Cross Gate, London, said the improved quality of cars had been the biggest change in the motor industry since he started his career.

BBC: Bill Board in the Wadham Stringer showroom in the early 80s

To enter the estate, guests must cross a salt marsh by wooden bridge, access an electronic gate and drive through a barn-turned-gatehouse.

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Several hundred female supporters of Hamas went to the border crossing -- the only one in Gaza that Israel doesn't run -- to demand that the gate be opened and that six Palestinians be allowed to cross for medical treatment.

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