Skripal evidence | Happy countries | Exam crackdown | Making 2001 | West Ham John Cookson ( Letters, 16 March ) states: “As for sharing samples with the Russians, that is akin to sharing the evidence of a murder with the murderer.” But sharing evidence with an accused person (or their legal representative) is precisely what an accuser should be doing in a civilised country. Andrew Christie Edinburgh • Interesting to note that of the top 10 “happiest” countries in the …