Tuesday's top stories on Newstalk.com...
Ryanair pilots who are members of the Irish Airline Pilots' Association (IALPA) are to go on strike on Wednesday December 20th.
Irish-based, directly-employed pilots - mostly captains - will withdraw their labour in an action that IMPACT says will either disrupt flights or "generate substantial costs" to the airline.
In a statement, Ryanair said the threatened action is by less than 28% of its Dublin pilots - and the company noted it will deal with any disruptions to flights "if or when they arise".
A 23-year-old woman has been arrested in the Wicklow area in connection with a triple shooting in Mulhuddart in Dublin yesterday.
An eight-month-old baby, a woman (29) and a teenager (17) were injured in what is believed to be a feud-related attack.
Facebook has announced a change to its financial policy, meaning some advertising revenue will no longer be recorded in Ireland.
The change will apply to countries where the social network has dedicated offices.
Advertisements will be sold and recorded by 'local teams' - effectively meaning that the company will pay tax in the country where the ads are sold.
Prosecutors have revealed the New York subway bomb suspect wrote on Facebook: "Trump, you failed to protect your nation."
Akayed Ullah has been charged with providing material support to terrorists and using weapons of mass destruction, following a failed suicide bombing in New York on Monday.
Authorities say he set off a bomb underneath Times Square, in a busy passageway connecting a subway and the country's largest bus terminal.
The ad for the new Garda Commissioner will say policing experience is 'desirable, but not essential'.
Justice Minister Charlie Flanagan has formally asked the Policing Authority to start the process to hire Noirín O'Sullivan's replacement.
The application process will be an open competition, and the authority will consider international candidates.