The campaign has repeatedly asked photographers and media outlets not to photograph the children or air images of them on the campaign trail.

CNN: Obama regrets putting his kids on TV

Following the riots in London on Monday, Andrew Bayles' photograph of brooms being brandished in the air became an internet sensation.

BBC: How the broom army photo swept the web

In April a float in a Sikh parade in Surrey, a Vancouver suburb, included in a display of Sikh martyrs and saints a photograph of Talwinder Parmar, the assumed mastermind (now dead) of the Air India attack.

ECONOMIST: Canada