I'm currently in Italy. I travelled the length of Italy last year, there were soldiers stationed at every major train station and outside every major tourist attraction.
The police and carbierneri (sp) are regularly patrolling the relatively rural area I'm currently in and it is normal to come across police roadblocks where they stop you and ask for your papers. I visited a cafe in a small town earlier and an army Land Rover pulled up with operation secure streets written on the side and two armed soldiers got out and wandered around for a bit.
It is too little too late from the English authorities. The attitude of complacency needs to end now, How many more attacks do there need to be before we see some form of tangible security increase rather than just kind words about the deceased.
How much more security can we reasonably have? Find a way of securing one place, and unfortunately those with evil intent will simply find somewhere else. Sadly, they only have to find one hole in the fence, we have to get it secure all the way.
This is the unfortunate reality of the situation - there's only so much we can do to prevent it. And this is before we get into the discussion about how much security we want before it starts impinging on our own free way of life, which is of course likely to be one of the objectives of attacks.
Meanwhile, another difficult question is how much coverage should be given. The current practice seems to be to make it out to be a big deal, which of course gives it the very graphic publicity the perpetrators seek. But if we don't make it a big deal, we go down the Sadiq Khan route that it's just part and parcel of life, which it definitely isn't and shouldn't be. No win unfortunately. The only comfort is we've gone 12 years between mass-casualty events, so in that sense our security services have done pretty well.