Rick Gladstone contributed reporting from New York, Dan Bilefsky from the United Nations, and Nick Cumming-Bruce from Geneva.

Rick Gladstone (NYT)

Reporting was contributed by Heba Afify from Cairo, Anthony Shadid from Istanbul, Turkey, and Rick Gladstone from New York.

Christina Capecchi contributed reporting from White Bear Lake, Minn., and Rick Gladstone from New York.

Kareem Fahim reported from Misurata and Tripoli, Libya; Anthony Shadid from Beirut, Lebanon; and Rick Gladstone from New York.

Reporting was contributed by Elisa Mala from Oslo, Christina Anderson from Stockholm, Alan Cowell from Paris and Rick Gladstone from New York.

Reporting was contributed by Steven Lee Myers from Washington, David E. Sanger from Cairo, Alan Cowell from London and Rick Gladstone from New York.

Ethan Bronner contributed reporting from Jerusalem, Rick Gladstone from New York and Simon Romero from Rio de Janeiro.

Rick Gladstone contributed reporting from New York.

Alan Cowell reported from London, and Rick Gladstone from New York.