Who is actually obstructing airliners’ general practitioner in the Baltic?

.ON APRIL 29TH Finnair, Finland’s nationwide airline, said that it would certainly suspend flights to the eastern Estonian area of Tartu for a month. Recently two planes were forced to reverse after their GPS signals were disrupted. Family doctor jamming has increased dramatically in the Baltic region over recent two years.

That lags it and just how hazardous could it be actually?