Research about Kali Linux

Research Kali Linux and complete a 2-3 page narrative (double-spaced) discussing the following, at a minimum:
• What is the origin of Kali Linux?
• Why is Linux the preferred penetration testing platform?
• Are there any issues running Kali Linux in a virtual environment versus installed “bare-metal”?
• Some countries have declared Kali Linux a “weapon system” – what countries have declared this?
• Is it legal to travel with Kali Linux on your laptop?
• Is Kali Linux safe to use?