If you've been both shocked and alarmed by the disturbing scenes on the streets of several UK towns and cities in the last few days (and what sane person hasn't?) a positive reponse might be to vent your feelings in a poem.
Poetry24 (http://www.poetry-24.blogspot.com/) "Where News is the Muse" could be just the outlet for your work. Launched in February 2011 by Martin Hodges and Clare Kirwan, you can find the following request on its Submission Guidelines Page.
"Do you have something to say about current events in the world? Can you say it evocatively, with passion, rage, compassion and/or humour? Can you make us see things from a wider perspective or take us right into the heart of the matter?"
If the answer is "Yes" to all these questions, then why not send them a poem? The detailed submission guidelines on the site stipulate a maximum of two poems to be sent to both editors separately, in the body of an email. Poems must not have been previously published, even on a blog and should be no longer than 40 lines. You are asked to provide a hyperlink to a recent online news story giving the background to what you are writing about, as well as your blog or website details and a 30 word biography.
Good luck if you do decide to submit something and let's pray for peace on our streets before any further lasting damage is done.