Mandleson understands the concerns.

He hasn't had the best couple of days since the wildcat strikes hit the headlines.

He has just given a statement to the Lords on the crisis,if we can call it that

"We are determined to see the robust enforcement of the employment
rights legislated in this parliament…and the mobility of labour which
has always been an intrinsic part of the EU.

adding that

"At a difficult economic time we fully understand the anxieties people
have about their jobs. It would be quite wrong and indeed against the
law to allow companies to advertise jobs and not consider British
workers. We have now established a mechanism, through ACAS, to examine
these concerns."

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