The root of modern Islamist extremist terror is squarely set in the Egyptian culture that lead to the birth of Islamic brotherhood and Fidayeens.
Both Islamic brotherhood and fidayeens make sure to attack innocent tourists. These thugs have killed hundreds if not thousands of tourists by attacking civilian transport (airlines, ships, trains, and busses) and tourist buildings like hotels and restaurants.
The reason is simple. Egypt is the poorest and yet the most populous Arab country. They are the biggest Hasid (jealous) and fasid (anarchist) in the recent history. They cannot stand the thought that people are enjoying their lives and experiencing different cultures.
They have been the bedrock of fundamentalist and terrorist form of life. Unfortunately the dominant religion in Egypt is Islam so this fine religion has been hijacked by Egyptian terrorists and hijackers.
From Mohammad Ata to Zawahiri to Qutab are all those Egyptians who have abused Islam in order to perpetuate their version terror and thuggery. Too bad that so many Pakistanis have sucked up and lapped up the cruel tendencies of Egyptian Islam.
The same Islamic brotherhood has killed innocent tourists in Egypt and when Egyptian army (equally corrupt) attacked the cancer of Islamic brotherhood, the germs got out of Egypt and now they are killing innocents in Pakistan, India, and Afghanistan.
Killing of innocent tourist shows the primitive animalistic behavior that is so prevalent among the Islamic brotherhood from the very top leadership down to the lowest level of their organization. And that very Islamic brotherhood is the common thread in all the terror incidences committed in the name of our peaceful religion.