arguments are in the next article
No they're not!
Next they will start to shoot journalists
They need plausible deniability, so I doubt it. There have probably been some staged accidents, and it is worth remembering that the US did bomb the Al Jazeera offices in Baghdad. The considered attack on the Al Jazeera world headquarters in Qatar was probably only rejected because there was no good way to make it look like an accident.
Democracy only works if those in power are committed to its preservation. Important policies and actions need to be discussed and public opinion allowed to influence final decisions. There is ample evidence that the U.S. and some other older democracies no longer really want their people involved in important decision making. They need to pay lip service to the concept. However, a combination of lies, secrecy and manipulation (partly by politicians themselves and partly by well funded PACs) ensure informed participation from the general population is next to impossible.
"Democracy" and "human rights" in these countries will no doubt remain for a long time as key justifications for very undemocratic foreign policies, but are well on the way to being dead in any meaningful sense.
... the police will now be allowed to examine the material to investigate whether a crime of 'communication of material to an enemy' has been committed
Miranda is clearly guilty, then, as he certainly communicated embarrassing information to dirty red commie journalists.
Sadly, many Western governments are unable to carry out some actions they want to if the general public knows about them, simply because most people consider them immoral and unacceptable. They are, then, presented with a dilemma. They can stop doing things their electorate would find objectionable, they can try to eliminate the ability of the electorate to influence government, or they can lie about what they are doing and try to keep it secret. The third is impossible if people like Snowden are allowed to tell people what their government is doing on their behalf.