manchester. the westminster attacker was also a british citizen. so travel bans, one of the seemingly common sense answers to a common sense problem which actually makes no sense at all, and also you can't ban the internet with a travel ban, and most of these people have been radicalized by the internet, so the travel ban is really a red herring. >> nader, when you talked about how companies are going to have to do more, explain exactly what you mean. it seems to me you can't really turn off the internet, can you? >> no, but i think what we're going to see, and this has been something more open in debate here, and the government has been more explicit about it in this country, fareed, is there is a sense about whether it is the persistent character of on-line extremist material on various websites and social media platforms that the countries are aware of and can be do more to take down what has been put out or the widely encrypted communications which we know is complicated in law enforcement and other government authorities actually want to keep it. having said all that, i think it is important to understand that