I'm sure all our thoughts go to those killed an injured in Cairo, a mix of many nationalities. This can only damage Egypt's econonmy, but most of us will probably carry on travelling after weighing up the risks. In Uk we have lived with indesciminate bombing for most of my life and whilst you never get used to it you learn that it is just another risk in life.
Nubianqueen - I think we all feel pretty strongly about those living in Egypt and a well aware of the poverty and hard life that many endure. Hopefully tourism brings in significant funds which help support those people to some extent (though the rich will get richer too). I'm not sure that bombing has much to do with the poverty though, as driving out tourists just drives out foreighn money. It's presumably more about idealism or hatred.
It certainly won't stop me going out to Egypt.
Iain