These days Pope Francis and President Fernández pose together smiling for the cameras. Things used to be very different.
Here is a timeline of key events related to the mysterious death of Alberto Nisman in Argentina, a case that dredged memories of one of the worst terrorist attacks in Latin American history.
Cristina Kirchner's cabinet took out a full-page advertorial in the Wall Street Journal this weekend to discredit the dead prosecutor's case against the Argentine president.
Alberto Nisman talked frequently with the US embassy in Buenos Aires, offering heads-up on his moves and getting coached by American officials on his work investigating the 1994 AIMA center bombing.