The US Department of Homeland Security is now pushing ahead with its "War on Tourism" by starting to implement Biometric Passport and Visa delays at airports and ports.
The plan seems to be to take scans of both your index fingers and a digital photograph of your face i.e. the two least reliable Biometric identifiers currently under consideration for ID Cards and Passport use (iris scanning is orders of magnitude more accurate).
Remember that Biometric Identifiers are not unforgable despite the hype, as they are based on essentially digtal scans or photos which are trivially copied and cloned. The proposals to use Digital Signatures to ensure the authenticity of these stored Biometric Identifiers are also not foolproof.
Even an optimistic extra 10 seconds delay per passenger, on top of the existing queues at US passport and immigration control desks, equates to an extra hour and half to two hours per 747 Jumbo jet fill of tourists.
They do not seem to have any plans to reduce the existing bureaucratic red tape, so these Biometric scanning induced delays will be in addition to the existing ones.
US citizens (and those from Canada) are exempt from these Biometric checks, so, presumably, if they actually work, the criminals and terrorists who have access to false passports and visas will use USA or Canadian documents instead.
Why is the UK government not demanding to check the Biometrics of US visitors to the UK ? Why is this non-tarriff trade barrier to free movement allowed in one direction , but not the other ?
Most innocent people (not even US citizens) do not willingly trust their own governments with personal data such as their fingerprints. Why should anybody trust the US Government with this, given their appalling record on computer security and corruption of petty officials with access to sensitive data systems ?