9 seconds planned for th rescue, 5 actual minutes, that must have felt like a very, very long time.<p>- Is it possible to invent radio-based, directional weapons able to kill through walls? e.g. X-rays or microwave?<p>- I&#x27;m surprised the federal agent asks for permission to kill the criminal. As long as there is a hostage, isn&#x27;t the self-defense considered a default?