For one; if there are aliens and we can contact them a post world wide web environment will be needed. www just won’t work if we’re communicating with ‘outer’ space.

For two; apparantley the UK governments attitude to possible alien invasion is one of bureaucratic indifference . Unless of course, a major consultancy firm was involved, charging millions of pounds for advice.

For three; I have always had a quite admiration for some of the theories of the Posadists who believed that alien invasions were from future socialist societies, because only with a socialist mode of production would it be possible to develop inter-planetary travel.

For four; just idlely browsing for ‘aliens’ ‘Posadists’ I came across this resource which looks worth exploring .