LONDON, July 6, 2021 /PRNewswire/ -- The latest results from the Henley Passport Index — the original ranking of all the world's passports according to the number of destinations their holders can access without a prior visa — show that while there is cause for optimism, it must be tempered with the reality that cross-border travel continues to be significantly obstructed. Although some progress has been made, between January to March 2021, international mobility had been restored to just 12% of pre-pandemic levels, and the...