According to the TimesOnline:
Nearly two fifths (37 per cent) believe that the Jewish community in Britain is a legitimate target “as part of the ongoing struggle for justice in the Middle East”. Moreover, only 52 per cent think that the state of Israel has the right to exist, with 30 per cent disagreeing, a big minority. One in six of all Muslims questioned thinks suicide bombings can sometimes be justified in Israel, though many fewer (7 per cent) say the same about Britain. This is broadly comparable to the number justifying suicide attacks in ICM and YouGov polls of British Muslims after the July 7 attacks.
The YouGov poll revealed that a majority of Muslims do not believe that they are treated equally or fairly by British political leaders.
However, according to Populus, 12 per cent of 18 to 24-year-old Muslims believe that suicide bombings can be justified here, and 21 per cent in Israel. A fifth of all Muslims, and a quarter of men, say suicide attacks against the military can be justified, though only 7 per cent say this about civilians.
Let's see now, 12% of 1.6 million UK Muslims equals 192,000. 7% equals 112,000. That's a big pool of potential suicide bombers any way you slice it.