Barry Soper: Newstalk ZB senior political correspondent speaks ahead of Thursday's mega-strike - Heather du Plessis-Allan Drive

The Public Service Commissioner's again sounding a negative note over New Zealand's major health and education strike tomorrow.

About 100,000 union members across various sectors will stop work across the day - expressing frustration over pay and working conditions.

Newstalk ZB senior political correspondent Barry Soper says this is expected to be the biggest strike in New Zealand's history since the 1970s, with many unions expected to take part. 

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