By Lucy Kenningham Olympic security has barricaded central Paris off to all but a few residents. Has it all gone too far? It’s like a crime scene. Metal fences have been erected, paths cleared and restaurants lie empty. The barricades are being likened to an iron curtain and – in a level of security the DDR would have envied –residents or those with a medical reason need a QR code to get through checkpoints. Restricted areas have been designated as red or grey zones as part of anti-terrorist protections. Yes, in a scene comparable to the dark days of Covid, Paris is in lockdown. This time howe…