The government is to expected to raise the age that people can claim state pensions to as high as 70 by 2016.
Former government pensions adviser Ros Altmann accused employers of "fighting against being forced to keeping workers beyond the age of 65".
Employers "are ageist" she told Today programme presenter John Humphrys, "they want the option of throwing you out of work when you reach 65".
She commented that although elderly people may not be fit to work full time, that many would be able to work part time beyond the age of 65.
"It should be whether you're fit for the job, not how old you are," she said.
Get in touch with Today via
or text us on 84844.