VATICAN CITY - Barbara Blaine clutched a pile of blue and yellow fliers as she walked alone Monday onto one of the most venerated sites in Catholicism.

She had flown in from Chicago just hours before, compelled by what she considered yet another sign of church indifference toward victims of clergy sex abuse. Vatican leaders had asked Cardinal Bernard Law, who resigned as Boston archbishop after mishandling molestation cases, to lead an important Mass at St. Peter's Basilica mourning Pope John Paul II.

Within moments, Italian police guarding St. Peter's Square formed a circle around Blaine, then moved her and a scrum of news cameras from beneath a sheltered walkway onto the street in the pouring rain.

As one other molestation victim stood nearby, she continued her protest. "We believe that Cardinal Law should take a position where he is in the background," she said, standing a few hundred yards from the basilica. "We don't believe this is appropriate for him to be in any position of power or trust in the church."

Law celebrated the Mass without disruption, saying in his homily that Italian, Polish and other pilgrims were inspiring in their huge tribute to John Paul. Nearly 3 million mourners flooded Rome for the pontiff's funeral last week.

"In these incredible days, the pope continues to teach us what it means ... to be a follower of Christ," Law said, reading slowly in Italian. "Our faith has been reinforced."

After the service, several worshippers from Europe said they had never heard of Law. American parishioners said they recognized him, but questioned whether the protest was appropriate right after the pope died.

"It's not the time or the place," said Mary Beth Bauer, who lives in Maine and had followed the abuse crisis and Law's resignation.

But some Catholics said seeing the cardinal presiding over such an important Mass was another sign that the Vatican did not understand the betrayal parishioners felt that he protected guilty priests.

Blaine, founder of the Survivors Network of those Abused by Priests, and Barbara Dorris, also a leader of the advocacy group, said the choice of Law devastated victims. The Mass is one of nine daily services for the pope for the period of mourning called Novemdiales.