"anoything more than inconveniencing Miranda at Heathrow for a few hours" > I am not sure if you're deliberately leaving out details or are just ignorant. The British Government charged him under the 2009 Terrorist Act for espionage activity. The authorities also confiscated the electronics equipments he was carrying including his mobile phone, laptop, camera, memory sticks, and DVDs. And he was forced to tell the passwords for his phone and laptop. Thank god the data on the machine was encrypted.
Just a advice, next time spend some time on Google before classifying serious events as "Hyperbole" and "Monthy Python sketch".
No, David Miranda has not been charged with anything. Before you suggest someone else "spend some time on Google", perhaps you should do so yourself.
He was held under the Terrorist Act, section 7, a section which allows the police to hold people for a limited time for the purpose of establishing whether they may be terrorists.
If he had been charged under the Terrorist Act he would have been currently residing in a high security UK prison, not been allowed to continue his flight after a few hours.
And I stand by what I wrote. Greenwald and Miranda has acknowledged that he was carrying data related to the Snowden leaks. While I believe using section 7 is a blatant abuse of the Terrorism Act in this case, and that the Terrorism Act itself is a travesty, he was carrying documents that, regardless whether we think the should be public (I am all for their publication, and I'm a big fan of Greenwald and Snowden), are classified and originated from a high profile leak.
Now despite this, and despite their willingness to abuse the Terrorist Act to detain him and search him and confiscate some equipment, they did not do anything else.
When you can carry confidential intelligence documents through a UK airport and only risk being detained for a few hours and having them taken off you, that is a prime demonstration that the government is still thankfully quite impotent when it comes to touching journalists or those working for them (I'm not willing to assume it'd be safe for someone not linked directly or indirectly to a major media organization to do the same).
Just a advice, next time spend some time on Google before classifying serious events as "Hyperbole" and "Monthy Python sketch".