Last Sunday, I drew attention to the preponderance of bus-based public transport in Ireland and criticised - politely - those who conflate public transport with rail.
The next government will have to make choices between bus and rail, since resources for the capital programme will be tight. Rail-based projects are costly.
If there are worthwhile examples, the onus of proof lies on those with projects to promote.
Jim Meade, of Irish Rail, has addressed none of these issues, delivering instead an intemperate litany of personal abuse and misrepresentation. It is unusual for the chief executives of important State companies to sprinkle their public communications with ''lazy'', ''superficial'', ''flawed'', ''comical'', ''false'', ''outdated'', ad nauseam.
I take exception to the rhetorical question ''Has he even heard of the climate crisis?'', on which I have been writing, with increasing alarm at policy inaction, for more than 20 years.
Jim Meade's jibe is straight out of the Donald Trump playbook.
Here is a question for Mr Meade: do the staff at the Irish Rail press office have a Google facility on their laptops?
All investments in public transport, whether bus or rail, must satisfy rigorous appraisal in accordance with the Public Spending Code, for which bad-mannered vituperation is no substitute.