In 2016, India demonetized bills as low as 500 Rupees (the equivalent of $6). People died in the ensuing chaos, and the Supreme Court just that ruled in favor of the demonetisation.
They are definitely generating and analysing this data in the US. I believe the data protection laws in the UK and EU prevent it here, at least to the scale. There is no doubt it could be done though - it's the same basic technology with a different transport mechanism and/or intermediary.
