There are many ways of blocking access to a wifi network. The only way to bypass any restrictions is if you can get access to the access point's web config(wired login using the access point's IP address and the admin password). The MAC address of your Blackberry could be blocked which would deny the connection every time the access point sees the BBs MAC address.
You can block people by enabling security on the access point and assigning a passphrase to the network, which every connection would use or be denied.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.