Asleep at the wheel?

Thanks to RT for alerting me to the existence of the UK website Bellingcat, which claims to be ‘the home of online investigation.’ RT reports the Russian Foreign Ministry denouncing a report from Bellingcat which claims to have evidence from a Russian passport database pointing to the two Skripal suspects ‘secret service’ connections. Bellingcat goes so far as to say that their passports had secret markings which identified the true nature of their employment. The Russian Foreign Ministry claims that Bellingcat has connections with British secret service sources. Whatever the case, it all makes the question about how the two got UK visas and passed unchallenged through passport control all the more pressing. If Bellingcat had been fed this information in order to bolster the charge that the Russian suspects were indeed GRU secret service agents, then it all boils down to that old question who knew what, when?