Rock star Bono has spoken about the tensions caused within his group U2 by his high-profile campaigning.
At one point he feared his commitment to the anti-poverty cause might force him out of the band.
He's admitted his activities have "raised eyebrows" among band members.
"So we have to be very careful about just letting me go too far. When I do my rant on making poverty history, I have got Larry Mullen, our drummer, behind me looking at his watch, timing me."
Bono's poverty rants annoy U2
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