Manchester, England (CNN) Boris Johnson wants to keep his Brexit plan private. But the Prime Minister isn't having much luck these days.

According to RTE, the UK's plan to avoid post-Brexit infrastructure on the frontier between Northern Ireland and the Republic of Ireland involve "customs clearance centers" several miles from the border -- and on both sides of it.

That, it hopes, will remove the need for something called the Irish border backstop from any final Brexit deal. The backstop is an emergency measure which would keep the two Irish nations in regulatory alignment, removing the need for any border or "clearance centers" at all. It's deeply unpopular with many in Johnson's Conservative party and is one of the main reasons his predecessor, Theresa May, failed to get her Withdrawal Agreement through Parliament.

Ireland quickly dismissed the idea as a "non starter". And Johnson himself told the BBC on Tuesday, "that's not what we're proposing at all... you'll forgive me, I would like to veil our proposals in decent obscurity until we've been able to share them properly with our friends".

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