Will Chicago in May be insufficiently secure for the G8 in May?

The announcement yesterday of the cancellation of the G8 in Chicago next May came as a surprise to the organising committee, yet the report linked here indicates it has been under consideration for some time.

If in any way the decision is related to security considerations, then it must speak volumes on the uncertainty for the economy and the ever widening reach of the EU economic meltdown and potential euro collapse!