The problem with the list of terrorist offences committed by Muslims is it's a very selective list. For an example, here's a list from a British perspective:
In 1972, 22 bombs were set off in Belfast in one day, killing 10 people, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1972, a small village in Northern Ireland was bombed, killing 9 people, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1974, 21 people were killed by bombs placed in pubs in Birmingham, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1976, 10 civilians were taken off a bus, lined up at the side of the road, and shot, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1978, a restaurant was firebombed with home made napalm, killing 12 diners, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1982, a Household Cavalry band was bombed in London, killing 11 people, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1982 17 people were killed when a bar was blown up by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1983 6 people were killed by a bomb outside Harrods in London in the run up to Christmas, planted by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1984 the Conservative party conference in Brighton was bombed, killing 5 people, by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1987 11 people were killed by a bomb at a remembrance day parade, planted by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1990 2 Australian tourists were shot dead in the Netherlands by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
In 1998 28 people were killed by a car bomb in Omagh, planted by: (a) A disabled Rabbi (b) Christians on their way to the Holy Land (c) A retired group of tourists (d) Irish catholics
That's just a small subset of attacks, of course. Now, should Britain profile Irish catholics? How do you think the US congress would have reacted to that?
And there's another point the list misses. If you look at Israel's experience, many of the suicide bombings carried out against it in Lebanon were by women, not men, and most were not by Islamic groups but by Marxist ones. Also, one of the biggest terrorist attacks ever in Israel, the Lod airport massacre, was carried out by 3 Japanese Marxists. They got through airport security very easily, because they didn't fit the profile they were looking for.
That's the big danger of profiling, and it's even more the case in the west, where Al Qaeda has attracted Europeans, Africans, Arabs and Indians/Pakistanis to its banner.
Just look at some of the Al Qaeda terrorists currently in prison in the US:
Richard Reed. Half white, half Jamaican
Jose Padilla. Latino
John Walker Lindh. White
What about the perpetrators of the second worst terrorist attack in America. Would Timothy McVeigh and Terry Nichols have been the focus of profiling?
The problem with looking for someone who fits a profile is you pay less attention to those who do not.