On Tuesday night, Mr Varadkar acknowledged a no-deal scenario would be a "real dilemma".
'In a no-deal scenario, the United Kingdom won't have any trade deals with anyone, and I think it will be very hard for them to conclude any trade deals with the question of the Irish border unresolved. Right now, the Irish government is holding its nerve. However, aerospace is a long term business, and we could be forced to redirect future investments in the event of a no-deal Brexit.
"Our ability to withstand any future downturns in the economy will be greatly enhanced by building up larger surpluses and buffers in the public finances now, especially if a no-deal Brexit can be avoided".
The deputy leader of the DUP, Nigel Dodds, said he had been "encouraged" by a change in tone from Europe - namely a speech by the EU's chief negotiator, Michel Barnier, who said on Wednesday that they would "have to find an operational way" of carrying out checks without putting a hard border between Ireland and Northern Ireland.
"People like myself accept if the country votes to leave again, that's it", Blair, who opposes leaving the European Union, told Reuters TV at the World Economic Forum in Davos. "It is better with a free-trade agreement".
Mr Harrington said he was "delighted" Mr Enders is "telling it like it is".
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Martin said Friday that it had augmented staffing, rerouted traffic and increased spacing between planes as needed. The airports with the longest average wait times were Atlanta with 42 minutes and Baltimore at 37 minutes.
DUP MP Gregory Campbell called the taoiseach's comments about a worst-case scenario as "deeply unhelpful".
The developments came as Labour leader Jeremy Corbyn hinted his party might back a parliamentary bid by former minister Yvette Cooper to extend Article 50 unless a deal is reached by the end of February.
Mr Varadkar's claims were condemned as "reckless and irresponsible" by Sinn Féin president Mary Lou McDonald.
The risk of no deal had "significantly increased", she said.
Britain's main business lobby has warned of disruption to the economy and delays for cross-border trade if Britain leaves the European Union without a transition deal.
In Westminster, opponents of the backstop fear it will not just be a temporary measure if not future trade deal is agreed. However, the devil is in the details and the support for May is said to only be if the Irish backstop is specifically time-limited.
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Mr Varadkar said: "They don't exist and nobody has been able to show them to me".
Vehicle makers and other manufacturers, including Airbus earlier on Thursday, have warned about the toll a no-deal Brexit could impose, including higher tariffs, disruption to supply chains and threats to jobs.
Media captionWhat happens in the event of no deal?
The economy is expected to eventually adjust in the long-run.
He suggested that the backstop, meant to keep the Irish border open after Brexit, would become a "relative" issue if May enabled an "ambitious" future trade deal by relaxing her negotiating red lines.
The latest is Irish dairy and sports nutrition group Glanbia.
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While the six movies were never domestic blockbusters, they always fared well at the worldwide box office. Not only is it a very successful game series, but a movie series as well.
Economic growth is also expected to decline by up to four percentage points in the first full year.