Iain Duncan Smith must have been called many things in his life but yesterday's description of him by Anthony Steen MP as murally dyslexic must have been a new one. Mr Steen was kind enough to spell out the phrase's meaning It means he doesn't see the writing on the wall. Not very respectful of his leader by a rankandfile MP. But yesterday respect was not much in evidence in the Conservative Parliamentary Party. In his statement at a hurriedlycalled press meeeting, Mr Smith accused those MPs who had ignored the threeline voting whip he had imposed on the Adoption Bill of being part of a conspiracy against his leadership.