The Prime Minister’s public willy-waving and incautious use of language (unprecedented threat*) is busy doing some of the terrorists work for them. Parliament is, clearly, in a right panic about a measure which many people* seem to think is currently unnecessary. Thus, we all move onwards towards hysteria junction again, via more unnecessary legislation.
UPDATE: Government wins by 9 votes. Thanks to the Democratic Unionist party. Oh well, it will have to be thrown out by the Lords instead.