:The leader of England's Roman Catholics has warned MPs that they cannot tolerate abortion and keep their faith.
Cardinal Cormac Murphy-O'Connor's intervention places unprecedented pressure on Catholic politicians for reforms to abortion law.
His warning means nearly 70 MPs are faced with a crisis of conscience if they fail to rally behind a fresh push for the abolition of legal abortion.
It also comes as anti-abortion campaigners prepare for a summer of protest ahead of the 40th anniversary this autumn of the 1967 legislation that legalised terminations.
The spotlight was first thrown on MP by the leader of Scotland's Catholics, Cardinal Keith O'Brien.
In a sermon he said that politicians should avoid "cooperating in the unspeakable crime of abortion and the barrier such co-operation erects to receiving Holy Communion".
"I urge politicians to have no truck with the evil trade of abortion. For those at Westminster this means findings means of overthrowing the legislation which makes the killing possible," he added.
Liberal Catholic politicians here and abroad have long sought to have their cake and eat it, too (exhibit one: Ted Kennedy), on issues like abortion. All too often the Catholic Church has turned a blind eye. If the politicians want the electoral benefits of being Catholic one would think they might follow Catholic moral dictates, too.