Mordechai Vanunu, Israel's nuclear whistleblower, was jailed in 1986 for publishing photographs of Israel's nuclear bomb factory at Dimona.
http://news.bbc.co.uk/1/hi/programmes/correspondent/2841377.stm

Photos of Dimona reactor
http://www.serve.com/vanunu/dimona/pix.html

. Ac-cording to Vanunu's data, Israel now has 100 to 200 advanced fission bombs, has mastered a thermonuclear design, and appears to have a number of thermonuclear bombs ready for use.
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ISRAEL'S NUCLEAR WEAPONS

Colonel Farr was a Master Sergeant Special Forces medic prior to receiving a direct commission to second lieutenant. He is now the senior Special Forces medical officer in the U.S. Army

This paper is a history of the Israeli nuclear weapons program drawn from a review of unclassified sources. Israel began its search for nuclear weapons at the inception of the state in 1948. As payment for Israeli participation in the Suez Crisis of 1956, France provided nuclear expertise and constructed a reactor complex for Israel at Dimona capable of large-scale plutonium production and reprocessing. The United States discovered the facility by 1958

Shortly after the 1973 war, Israel allegedly fielded considerable nuclear artillery consisting of American 175 mm and 203 mm self-propelled artillery pieces, capable of firing nuclear shells.

In 1972, two Israeli scientists, Isaiah Nebenzahl and Menacehm Levin, developed a cheaper, faster uranium enrichment process. It used a laser beam for isotope separation. It could reportedly enrich seven grams of Uranium 235 sixty percent in one day.

Since 19 September 1988, Israel has worked on its own satellite recon- naissance system to decrease reliance on U.S. sources. On that day, they launched the Offeq-1 satellite on the Shavit booster, a system closely related to the Jericho-II missile.

The Jericho-II missile is capable of sending a one ton nuclear payload 5,000 kilometers.

The most alarming of these is the nuclear warfighting. The Israelis have developed, by several accounts, low yield neutron bombs able to destroy troops with minimal damage to property.

Jericho II ballistic missile, and the soon-to-arrive strategic submarine force,

Israel is attempting to obtain a new, more efficient, tritium production technology developed in India.

http://www.fas.org/nuke/guide/israel/nuke/farr.htm