A British poll has found strong public support for controversial terror laws.
According to the survey for the Sunday Telegraph, 65% are in favour of extending the amount of time suspects can be held without charge.
Gordon Brown faces a knife edge vote on Wednesday - with many Labour MPs against the 42 day limit.
But speaking on the BBC's Sunday AM programme, Home Secretary Jacqui Smith said the laws are vital for public safety.
"There are rights in this country not to be blown up on a bus, not to be in fear when you travel on the tube, not to worry when you go to a shopping centre that someone is plotting to blow it up. And that is the reality of what we are trying to investigate here," Ms Smith said.