Anti-Catholicism has been called the last acceptable prejudice, and its occurrences are consistently monitored by the likes of Bill Donohue's Catholic League for Religious and Civil Rights. Of course, the bias can easily be extended to Christians as a whole ("poor, uneducated and easy to command," in the Washington Post's opinion) if not the entire conservative movement (consider NPR's bias).
Over here in the EU, Italy's Rocco Buttiglione was rejected as an EU Commissioner when it was revealed that he, as a Catholic, privately believed in marriage between men and women. Buttiglione lamented: "The new soft totalitarianism that is advancing on the left wants to have a state religion. It is an atheist, nihilistic religion - but it is a religion that is obligatory for all." Luxembourg's Viviane Reding may also be derailed for no reason other than reputedly being a practicing Catholic.
Yet such intolerance is not confined to Europe. Obama's nominees have been a virtual "who's who" list of extremists, from Van Jones to Cass Sunstein and John Holdren to Kevin Jennings (nevermind associates such as Rev. Wright and Bill Ayers). Recent nominees, however, go beyond merely anti-Catholic views.
Obama re-nominated Dawn Johnson to head DOJ's powerful Office of Legal Counsel, though she has published anti-Catholic literature and claims the Catholic Church ("The real enemy" of the U.S.) should be legally punished for promoting pro-life views. Obama appointed Erroll Southers to lead the TSA, though he has stated that the nation's highest security risk is posed, not by Muslims with bombs in their undies, but by the homegrown threat of ... pro-lifers and groups with a "Christian identity." As FRC notes: "Unfortunately, that makes him the perfect choice for Homeland Security's Janet Napolitano, who last year included pro-life and pro-marriage conservatives on the domestic 'watch list.'"
I'm reading C.S. Lewis' Mere Christianity, and he writes that he enjoys the liberal perspective of Christianity, which allows one to believe in large portions of the world's complimentary religious traditions, as opposed to the intolerance required by his former atheism, which forced him to conclude that nearly all people at all times in history were simply wrong on the most fundamental level.