Essentially, the principle behind all mixing services is the ability to remove or obscure any linkage to a real-world identity because the bitcoin blockchain maintains a public transaction log of all transactions.

FORBES: TORwallet Sparks Trust Without Jurisdiction Debate

The judge also said that the law "impermissibly attempts to circumscribe a court's ability to review the necessity of nondisclosure orders, " violating the principle that allows the judicial branch to review laws and executive actions.

WSJ: Judge Strikes Down Secretive Surveillance Law

The UK's shadow defence secretary Jim Murphy said in the Commons he welcomed the agreements in principle but asked for assurances that they would not limit the UK's ability to act independently "in all circumstances" - such as the defence of overseas territories.

BBC: Cameron and Sarkozy hail UK-France defence treaties