dictionary defines it as murder of an important person for political or religious reasons. we can all conjure up headlines of history. gandy, lincoln, martin luther king, julius caesar. but my next guest chronicles a quieter kind of killing. the investigative recorder has done the most investigation on israel's secret assassinations. it's all in a new book called "rise and kill first, the secret history of israel's targeted assassinati assassinations." ron berger, plaid to have you on. i think the question everybody has is did israel need to have this kind of a lethal policy, targeted assassinations to survive? is this a crucial part of what israel needed to do?