Brig. General Yitzhak Yaakov Dies at 87

'Yicha,' as he was called, was head of the IDF's weapons research and development program; a memoir he published during retirement had him convicted of handing over of secret information without authorization.

Brigadier General Yitzhak "Yicha" Yaakov, who headed the Israel Defense Forces' weapons research and development program at the end of the 1960s...