Major modern British political parties tend to be so tightly orchestrated that their MPs often have little scope for free action. A large minority of ruling party MPs are paid members of the Government. Since 1900 the Government has lost confidence motions three times — twice in 1924, and once in 1979. However, the threat of rebellions by their own party's backbench MPs often forces governments to make concessions (under the Coalition, over foundation hospitals and under Labour over top-up fees and compensation for failed company pension schemes). Occasionally Government bills are defeated by backbench rebellions (Terrorism Act 2006). However, the scrutiny provided by the Select committees is more serious.