Bono never takes my 'pillow talk' advice, says wife 'Dr' Ali
Bono's wife Ali Hewson has urged governments to treat migrants with respect and to ensure they are given a safe place to live.
Ms Hewson, speaking at the University of Limerick where she received an honorary doctorate in recognition of her charity and humanitarian work, said the number of people being driven out of their homes due to conflict had quadrupled.
"We have to learn how to look after these people, how to give them a chance for the future. It's likely they won't be going back to their homes for a very long time," she said.
When asked if she ever tried to get her husband to influence any world leaders she joked about the "odd bit of pillow talk".
"If you have a relationship with someone you talk about everything that's on your mind. He rarely takes my advice," she joked.
The University of Limerick conferred Honorary Doctorates on six people from the fields of humanitarianism, business, the arts and the public sector.
Adi Roche, founder of the Chernobyl Children's Project International, accepted her honorary degree of Doctor of Letters. She paid tribute to the "army of people" who provide crucial services.
"Ali [Hewson] and I are really just the front people, but around and behind us we are surrounded by an army of people," she said.
"This is honouring all of them. We are the voices but, really, they are the foot soldiers, they are the life blood, they are the bones on the body of the charity."
Another recipient was Michael Flatley, who said he was looking forward to "climbing other mountains" now that he had retired from his dancing career.