A month ago, the government an-nounced plans to keep terrorist suspects indefinitely under house arrest on the home secretary's say-so. It has been attacked from all sides ever since. This week the government backtracked. Under the Prevention of Terrorism bill, introduced to Parliament this week, house arrest would remain a potential tool in the government's ever-expanding anti-terrorist arsenal, but the government would first have to opt out of Article 5 of the European Convention on Human Rights guaranteeing a right to liberty. Parliament would have to vote on that.
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