Have R halt the EC2 machine it's running on?

I'm impressed that works. (For anyone else surprised that an instance can stop itself, see notes 1 & 2.).

However, the downside is having your root password in plain text in the script.

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.