Which current Swiss surveillance debates illustrate the conflict between security and privacy?

Bodycams for SBB transport police, police licence-plate scanning on roads, expanded intelligence-service powers against violent extremist groups, facial recognition in public space, SBB cameras measuring shopping behaviour at stations, and the e-ID vote.

• Bodycams (SBB transport police): protection and evidence vs. filming uninvolved passengers.
• Licence-plate recognition on roads: automatic scanning of every passing car, not just suspects.
• Federal Intelligence Service (NDB): a proposal to let it monitor violent extremist groups (e.g. hooligans) with tools so far reserved for terrorism or threats to critical infrastructure: mail and phone surveillance, trojans, bugs and breaking into computer systems.
• Facial recognition: identifying people in public space automatically.
• SBB customer-flow cameras: plans to measure shopping behaviour at stations drew warnings from data-protection experts, and SBB backed down.
• E-ID vote: opponents called it "a gift to Big Tech and the surveillance economy". The Digital Society Switzerland demanded an e-ID that is digitally self-determined, privacy-friendly, data-minimal and secure.

The common pattern: a security or efficiency benefit is claimed, and the question is whether there is a concrete threat, a defined purpose and a proportionate intrusion.

Go deeper:

• Nau.ch: SBB rudern bei Überwachungskameras zurück — how the SBB customer-flow camera plan was dropped.
• Wikipedia: Federal Intelligence Service (Switzerland) — the Swiss intelligence service and its legal powers.
• Wikipedia: Facial recognition system — how the technology works and where it is restricted.