Wireless convenience and risk | Computer Science homework help

What risks and safeguards are associated with wireless communication? 
What is “war driving” or “war flying”?  
Are you comfortable (or would you use) a wireless “hot spot” to do computer work?  
What safeguards might you use in accessing an unprotected (public) wireless communications?  
Are you more at risk using a wireless connection via laptop or a connection via a smart phone?