I have long been critical of the Roman Catholic Church's general lack of disciplinary action against members who actively support (and in fact, promote) abortion.
Here's a current situation where the local Bishop has done what he should do- Patrick Kennedy (son of Teddy Kennedy and a House Rep. from Rhode Island) has been denied communion by Bishop Tom Tobin. Tobin has instructed the other priests in the diocese to deny Kennedy communion.
Kennedy, like his various politician family members, is a staunch advocate and promoter of abortion. The Roman Catholic Church rightly understands abortion to be murder. I pray Roman Church leaders would make Tobin's actions a more widespread practice.
Read about Kennedy being denied communion here.