To avoid the need to negotiate the release of captives with the Palestinians, IDF issued directives, ordering the use any force necessary to prevent the capture of its soldiers, even if it leads to the death of its own soldiers...
Of particular interest is Silverstein's claim that reporting on this subject was the reason for the IDF attempt to censor a NYT reporter in Israel last week.  The incident was reported, but without details, regarding the subject of the censorship.
There is no doubt that the issue of 'Hannibal protocol' is a sensitive issue in Israel today. However, it is difficult to figure out what are the rules of conduct that the Israeli governmet is trying to enforce in this matter. It appears that it is permitted to talk about the subject, including on radio and TV, but it should not be detailed in writing in Israel, unless in English...
One thing is clear: With the passage of time, it is going to be one of the main issues that would be permanently linked to the current catastrophic round of violence in Gaza.
 2014-08-04 Dozens of innocents killed in IDF's 'Hannibal' protocol_Haaretz
 Hannibal Directive_Wikipedia
 2014-08-04 Israeli army employed 'Hannibal Protocol' to prevent officer's abduction_i24News
 2014-08-02 IDF Censor Tells NY Times It Must Censor Future Reports on Killing of Lt. Hadar Goldin_ RICHARD SILVERSTEIN
 2011-10-31 IDF Discusses 'Hannibal Protocol,' Designed To Prevent Soldier Abduction
 2014-08-01 Report: IDF implemented Hannibal Protocol right after kidnapping
 2014-08-01 Hadar Goldin and 'Hannibal Directive': Israel's Nightmare Dilemma to Stop Soldier Becoming Hamas Pawn