Of the three brave Pakistani politicians who stood up for Aasia Bibi, a Pakistani Christian woman who was sentenced to death last Nov for allegedly committing blasphemy against Prophet Muhammad, just one is still alive- Rehman.
Following the assassinations of former Punjab Governor Salmaan Taseer on Jan 4 and Minorities Affairs Minister Shahbaz Bhatti on Mar 2, worries are growing that Rehman could be next.
"Make no mistake: she is in grave danger, like nobody else," The Guardian quoted one of Rehman's friends, as saying. Rehman is currently in New Delhi attending a conference.
She spent most of Jan holed up inside her Karachi home, surrounded by police and advised by senior government ministers to leave Pakistan lest she be assassinated.
"I get two types of advice about leaving. One from concerned friends, the other from those who want me out so I'll stop making trouble. But I'm going nowhere," Rehman was quoted, as saying in Jan.
In Pakistan, she flies to Islamabad discreetly- once on a friend's private jet- but dares not appear in parliament, the report said.
Rehman's movements have become secret, highlighting how a vibrant voice has been silenced by intolerant forces, which some warn could entirely suffocate the country's fragile democracy.
"We are the knife's edge. A clerical tsunami is headed towards us," liberal academic Pervez Hoodbhoy warned at a literature festival in Karachi last month.