By Dan Hough The UK has scored its highest ever ranking on the Corruption Perception Index, and businesses should be worried, writes Dan Hough Today Transparency International (TI), the world’s leading anti-corruption NGO, publishes its annual Corruption Perceptions Index (CPI). It made chastening news for the UK, which received its lowest ever ranking. The CPI has become a regular part of the anti-corruption news cycle. Every year it reveals which countries are perceived to be doing better and which are believed to be doing worse in tackling public sector corruption. TI uses a range of data t…