Owners who fail to socialise and obedience-train dogs at an early stage are fuelling "frightening" levels of problem behaviour in their pets, according to the report.
Children should be taught at school how to be good owners in the face of research showing "fundamental" gaps in knowledge about animal welfare, the PDSA said.
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Edward Majerczyk accessed private information including nude photos from 30 celebrity accounts.
The President of the United States is set to restrict immigrants from Syria and six other Middle Eastern or African countries, aides say.
MPs say there is a "severe conflict of interest" in F1's sale to Liberty Media after it emerged the governing body benefited from the deal.