The right to remain silent in the US (and previously in the UK) means that your silence cannot be presented as evidence of guilt in court. In the UK, such evidence may be presented and the the jury is instructed that they may make negative inferences from your refusal to speak with the police.
The right to a jury trial has been limited by changes that allow juries to reach majority (10-2) verdicts and by removing the right to a jury trial in cases where the government suspects jury tampering.
I'm not trying to get into a debate about guns. But any list of rights no longer enjoyed by Englishmen wouldn't be complete without mentioning it. Whether it's for the better or worse is another issue.