No, not at all. I realise you're probably talking about the US and I'm not an American, but I think we have the same kind of issues in the UK too. Obviously the 7th July bombings in 2005 didn't have the same devastating effect as 9/11 but I think the percentage of Muslims who were behind these attacks or supported them is so small that it's practically insignificant. I think there have also been a lot of other terrorist attacks carried out by different groups, but they don't get as much press attention, so they're not thought to be as dangerous by the general public.
I think if you say you should change immigration laws for Muslims because some of them are terrorists... then why not change the laws for Germans, because some of them are neo-Nazis? You get good and bad in everything, but because it's really only the bad that we here about when it comes to Muslims we assume that the whole race must be bad, but that just can't be true. Plus if we did change the laws only for Muslims...surely that would just give extremist groups another 'reason' to attack us?