The Cardinal has thrown down the gauntlet to the Irish Politicians
Here is a cut and paste wiki list of people excommunicated by Rome in the 21st century so far
Members of multiple organizations in the Roman Catholic Diocese of Lincoln, Nebraska were excommunicated by Bishop Fabian Bruskewitz in March 1996 for promoting positions he deemed "totally incompatible with the Catholic faith". The organizations include Call to Action, Catholics for a Free Choice, Planned Parenthood, the Hemlock Society, the Freemasons, and the Society of St. Pius X. The Vatican later confirmed the excommunication of Call to Action members in November 2006.
Emmanual Milingo, former archbishop of Lusaka, for consecrating four bishops without the papal mandate. Also excommunicated were those receiving consecration.
The Community of the Lady of All Nations for heretical teachings and beliefs after a six-year investigation. The declaration was announced by the Canadian Conference of Catholic Bishops on September 12, 2007.
Fr. Dale Fushek (also laicized by Pope Benedict XVI 02/2010) and Fr. Mark Dippre. Former Priests were issued a Decree of Excommunication by Bishop Thomas J. Olmsted for operating "an opposing ecclesial community" in direct disobedience to orders to refrain from public ministry.
Fr. Marek Bozek (since laicized by Pope Benedict XVI), and the lay parish board members of St. Stanislaus Kostka Church in St. Louis, Missouri in December 2005 were declared guilty of the ecclesiastical crime of schism by then-Archbishop Raymond Leo Burke. Their excommunication was ratified by the Vatican in May 2008. Four of the parish board members have since reconciled with the Church.
The Archbishop of Olinda and Recife in Brazil, Jose Cardoso Sobrinho, announced the automatic excommunication of the mother and doctors of a nine-year-old girl who had an abortion after being raped and impregnated by her stepfather.
Sr. Margaret McBride, a nun, for allowing an abortion. McBride later reconciled with the church and is no longer living in a state of excommunication.
All the Catholics and legislators who promoted the abortion law in Uruguay.
Fr. Roy Bourgeois (also laicized and dismissed from the Maryknoll Fathers) for participating in the ordination of a woman. 
Fr. Robert Marrone, by Bishop Richard Gerard Lennon of the Roman Catholic Diocese of Cleveland in Cleveland, Ohio for violating the terms of his leave of absence. Marrone set up a worshipping community (the Community of St. Peter's) in a vacant warehouse and outside of a Catholic building or church after St. Peter's Parish in Cleveland was closed (it has since been reopened), in defiance of the bishop .
Fr. Roberto Francisco Daniel, known by local community as "Father Beto", by Bishop Caetano Ferrari, from Bauru, Brazil. Daniel was excommunicated for disobedience and for "heresy" because he refused to apologize for or retract his statement in support of gay people
Yet millions starve to death while the wealth of the Vatican is immeasurable?