Do you have any evidence as to the thought processes of the 7/7 bombers? It would be quite impressive if you did, considering.
Shehzad Tanwir's last testament gives the basic indication - the first step of revenge for British crimes as part of a long fairly indiscriminate war of attrition:
"To the non-Muslims of Britain, you may wonder what you have done to deserve this. You are those who have voted in your government, who in turn have, and still continue to this day, continue to oppress our mothers, children, brothers and sisters, from the east to the west, in Palestine, Afghanistan, Iraq, and Chechnya. Your government has openly supported the genocide of over 150,000 innocent Muslims in Fallujah.
You have offered financial and military support to the U.S. and Israel, in the massacre of our children in Palestine. You are directly responsible for the problems in Palestine, Afghanistan, and Iraq to this day. You have openly declared war on Islam, and are the forerunners in the crusade against the Muslims.
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We are 100% committed to the cause of Islam. We love death the way you love life. I tell all you British citizens to stop your support to your lying British government, and to the so-called 'war on terror,' and ask yourselves, why would thousands of men be willing to give their lives for the cause of Muslims? Allah, in Surat Al-Nisa, says: 'What is wrong with you that you fight not in the cause of Allah, and for those weak, ill, cheated, and oppressed, among men, women, and children, whose cry is: 'Our Lord, rescue us from this town whose people are oppressors, and raise for us from among you one who will protect, and raise for us from you one who will help.
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Oh Muslims of Britain, you, day in and day out on your TV sets, watch and hear about the oppression of the Muslims, from the east to the west. But yet you turn a blind eye, and carry on with your lives as if you never heard anything, or as if it does not concern you. What is the matter with you that you turn back not to the religion that Allah has chosen for you? You have preferred the dunya to Allah, His messenger, and the Hereafter. As Allah, in the Surat Al-Touba, says: 'Say, if your fathers, your sons, your brothers, your wives, your kindred, the wealth that you've gained, the commerce in which you fear decline, and the dwellings in which you delight, are dearer to you than Allah, and His messenger, and striving hard in fighting His cause, then wait until Allah brings about His decision, His torment, and Allah guides not those people who are fasiqun,' who are rebellious, disobedient to Allah. Your duty is to Allah, to His messenger, and to those who are weak and oppressed. As Allah says, in Surat Al-Touba: 'Oh you who believe, what is the matter with you, that when you are asked to march forth in His cause, you cling heavily to the earth. Are you pleased with the life of this world rather than the Hereafter? But little is the enjoyment of this world as compared to the Hereafter.'
"Oh Muslims of Britain, stand up and be counted. You are those who Allah has honored with Islam, and know that if you turn back from your religion, Allah has no need for you. As Allah, in Surat Al-Maida, says: 'Oh you who believe, whoever from amongst you turns back from his religion, Allah will bring a people whom He will love, and they will love Him. Humble towards the believers, stern towards the disbelievers, fighting in the cause of Allah, never fear the blame of the blamers, that is the grace of Allah, which He bestows upon whom He wills, and Allah is All-sufficient for His creatures' needs.'
"Fight against the disbelievers, for it is but an obligation made on you by Allah. As Allah, in Surat Al-Baqra, says: 'Fighting was ordained for you, though you dislike it. It may be that you dislike a thing which is good for you, and you like a thing which is bad for you. And Allah knows, but you do not know.' ...
What you have witnessed now is only the beginning of a series of attacks, which, inshallah, will intensify and continue, until you pull all your troops out of Afghanistan and Iraq, until you stop all financial and military support to the U.S. and Israel, and until you release all Muslim prisoners from Belmarsh, and your other concentration camps. And know that if you fail to comply with this, then know that this war will never stop, and that we are ready to give our lives, one hundred times over, for the cause of Islam. You will never experience peace, until our children in Palestine, our mothers and sisters in Kashmir, and our brothers in Afghanistan and Iraq feel peace.
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Oh Muslims of Britain and the world, the dunya is just a fleeting enjoyment, and unto Allah will be your return. Obey Allah and His messenger, if you are indeed believers. Fight against the oppressors, the oppressive British regime. And you, the oppressive kuffar forces, that amass their forces against the Muslims in order to annihilate them - As Allah says, in Surat Al-Nisa: 'Those who believe fight in the cause of Allah, and those who disbelieve fight in the cause of Satan. So fight you against the friends of Satan. Ever feeble indeed is the plot of Satan.' So fight. Fight against the enemies of Allah.
Our blood flows across the earth. Muslim blood has become cheap. Where are those who will avenge the blood of our children in Palestine, and the rapes and massacres of our sisters in Kashmir? As for those of you who have been affected by this reminder, give your lives for Allah's cause, for, in truth, this is the best transaction, as Allah, in Surat Al-Touba, says: 'Verily, Allah has purchased from the believers their lives, and their property, for the price that they shall be in Paradise.' They fight in Allah's cause, so they kill and are killed. It is a promise in truth, which is binding on Him, in the Torah, in the Injil, and in the Koran. And who is truer to his promise than Allah? Then rejoice in the bargain which you have concluded. That is the supreme success.
We ask Allah to protect Sheikh Osama, and those who are close to him, and those who are fighting in Allah's cause across the earth. We ask Allah to lift the oppression of the Muslims, and to hasten the release of the Muslim prisoners, and scholars across the earth. We ask Allah to protect Sheikh Abu Mus'ab Al-Zarqawi, and those who are with him, and grant a near victory in Iraq. Oh Allah, grant us martyrdom in your cause, and accept us among the righteous on the day we shall return to You.