Beer workers at the Carling plant in Burton-on-Trent, are to hold a strike ballot later this month.
The union Unite claims more than 400 staff at Molson Coors could be sacked after June 10, and reinstated on less pay.
The union says nearly 200 workers could lose as much as £9,000 a year in wages.
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There are reports hundreds of passengers are waiting to pass through security checks.
The new SATs means children as young as five are being tested on material such as punctuation and fractions, two years earlier.
It happened at a car park in Aston and the owner of the silver 4x4 had to cut his vehicle free.