No you won't

Cameron was blowing hot air yesterday by making promises that he simply can't keep, but look good on the pages of the newspapers.
Mail. (usual caveats)

David Cameron is planning new powers to muzzle Islamic hate preachers accused of provoking terrorist outrages such as the killing of soldier Lee Rigby.
The Prime Minister wants to stop extremist clerics using schools, colleges, prisons and mosques to spread their ‘poison’ and is to head a new Tackling Extremism and Radicalisation Task Force (TERFOR) made up of senior Ministers, MI5, police and moderate religious leaders.
The high-powered group will study a number of measures, including banning extremist clerics from being given public platforms to incite students, prisoners and other followers – and forcing mosque leaders to answer for ‘hate preachers’.

What's a definition of insanity? Oh yes, trying the same thing over and over in the exact same way and expecting a different outcome...
Appeasement doesn't work, you are not going to be able to get the muslim communities to rat out their fellow muslims when truth be told they are fare more afraid of the extremists than they are of the government.
Also the EU and the European Court of Human Rights have time and time again rapped the governments knuckles for attempting any such actions via our courts. Hell we can't even deport the scum, never mind get them silenced (Thank you Tony Blair)
Also, anyone want to take bets on any legislation suffering from mission creep? After all, if they somehow can pass it, you can bet that somehow or other it will be used to silence anyone the government don't like, though I suspect somehow or other the real extremists will get away with it.
It's the same time and time again, some atrocity happens and all we get are mealy mouthed phrases and legislation that takes away ever more of our civil liberties and nothing ever changes.

Sounds about right...