Why is the Palestinian blood so cheap?

Living for more than three weeks under the attacks of all kinds of modern destructive weapons is not an easy experience. The war against Gaza was a horrific period for Linda, Larissa, and Olga - they are Russian and Ukrainian doctors married to Gazan doctors. They talked exclusively to Pravda.ru about their experience under Israeli aggression against Gaza. "Israel is a very strong state. Why did they kill all those civilians? Why did they kill more than 1,300 people and injured more than 5,000?"...