Cosgrave cast a constant cold eye on the IRA enemy
Liam Cosgrave's political credo, like his father's, was salus populi suprema lex: the safety of the people is the supreme law. In practice this meant protecting the State from the IRA, and he was never slow to use its initials.
So why the pussyfooting around the term "IRA" by both Leo Varadkar in his Dail tribute, and David McCullagh in his Prime Time profile?
Neither Varadkar nor McCullagh specified the Provisional IRA, or IRA, by name, preferring euphemisms about security.