The risks facing Afghan interpreters is "exactly the same" as the problems facing troops fighting in Afghanistan, the great-grandson of Winston Churchill has told Daybreak.
Alexander Perkins, who has served in two tours of Afghanistan, will hand in a petition calling for more to be done to protect those who translated for the British army.
Signatures to the petition have leapt to 55,000 from 27,000 since this morning.
More top news
Kate will join Prince William on a tour of the Stephen Lawrence Centre before visiting a charity working with disadvantaged young people.
There is an "urgent need" for a "simpler and more trusted" system for investigating clinical failures, according to a damning report.
Over 100 mothers and fathers were investigated for leaving their children unsupervised in the final three months of 2014, new figures find.