Sorry Karen but he has every right. The primary responsibility of the government is national security. It's the reason we have governments and laws. If, as has become apparent, there is a section of society which is causing a threat then it is the governments responsibility to tackle the problem. Islamic Radicalisation is a problem. They have killed people. The government has to try and tackle that problem and these are measures which they believe may help.
If you think you know a better way to stop Islamic Radicalisation then lets hear it!