The Single European Currency

In the light of the recent economic and monetery crisis in the Eurozone, do you think the UK government should join the EURO? What would be the advantages and disadvantage?
What an exchange rate system is, and how this relates to the single currency?
The UK’s entry and withdrawal of ERM 1 and all the elements which make up the EURO/EMS
How the European Central Bank “controls”the Euro?
Evaluate, using appropriate evidence.