The attacks are also notable for their geographic dispersion and for the absence thus far of suicide attacks.
Security officials have pointed to a substantial fall in the number of suicide attacks since the peak months of April and May.
There were 41 suicide attacks in Pakistan in 2011, down from 49 in 2010 and a record high of 87 in 2009.
American officials have noted a decrease in the number of suicide attacks this month, from more than 200 in the previous three months.
But Somali security forces have succeeded in pre-empting many suicide attacks and have arrested some of the Al-Shabaab operatives hiding among the capital's population.
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Their bases were being repeatedly shelled by insurgents, several roadside bombs had gone off, and local Afghan police had died at the hands of suicide attacks.
The BBC's Abdullahi Abdi, reporting from Kenya, says that the number of suicide attacks in Mogadishu has decreased since the withdrawal of al-Shabab from the capital in August 2011.
The Pakistani government has said that such suicide attacks are a sign that the Taliban is growing desperate and becoming more aware that Pakistanis are taking a stand against them.
He refused, when asked, to say whether he had been prepared to announce his support for a Palestinian state before the September 11 suicide attacks on Washington and New York.
Christopher Coltart, barrister for the families of seven people killed in the suicide attacks, said LAS's internal debrief process had uncovered problems in deploying available crews to the Russell Square and Aldgate bombings.
The military statement said Mr Zangina was leader of Boko Haram in the "North Central part of Nigeria and co-ordinator of most of the suicide attacks and bombings in Abuja, Kaduna, Kano, Jos and Potiskum".
Because of these ties, he is disliked by many fellow-members in Fatah, and thoroughly distrusted by Hamas and Islamic Jihad, who remember his threat to demolish their organisations after the Islamist suicide attacks in Israel in 1996.
Likelier explanations of the decrease in suicide attacks are, simply, that the weather is now too hot, or that Islamist insurgents may be storing up an especially violent campaign for the referendum period, just as they did for the weeks in April after the founding of the government.
The U.K. has been the scene of a number of terrorist attacks, ranging from the coordinated suicide bomb attacks in London in 2005 that killed 56 people and injured more than 700 to so-called lone-wolf style attacks.
Wolfowitz said the suicide hijack attacks of September 11 were a pale shadow of what would happen if terrorists used weapons of mass destruction.
Ironically enough, NPR's ban came to light just after US cruise missile strikes against Osama bin Laden's organization, which had been implicated in suicide bomb attacks on US embassies in Africa.
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Just a month earlier the Joint Intelligence Committee, which draws up assessments from information gathered by several intelligence services, had concluded that suicide-attacks were not likely and would not become the norm in Europe.
The challenge of securing the Games was made clear the day after the U.K. won its Olympic bid: On July 7, 2005, a series of coordinated suicide bomb attacks in London killed 56 people and injured more than 700.
The northern Mali cities of Gao, Kidal and Timbuktu have been hit with suicide bombings and attacks and the departure of the Chadians risks further weakening their defenses.
Police do not know whether suicide bombers carried out the attacks or whether bombs had been left in packages on the Underground or in buses, according to Brian Paddick, Metropolitan Police deputy assistant commissioner.
Statistically, it is also the time of weight gain, heart attacks, depression and suicide.
In a series of co-ordinated attacks, including two suicide car bombings, on the southern Afghan city of Kandahar , the Taliban killed 35 people.
Before suspending the hearing, the judge demanded that three alleged would-be suicide bombers, who are said to have survived their attacks, identify themselves.
Argenbright, who was recovering from treatment for breast cancer that had been diagnosed in 1997, says he considered suicide after the public pillorying in the wake of the terrorist attacks.
After the 11 September attacks, it took the Saudi Government several months to admit that 15 of the 19 suicide hijackers had been its own citizens.
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