Obama victory could threaten ad freedom.(Brief article)

Barack Obama's triumphant arrival in the White House is expected to mark the end of the 'light touch' regulation of advertising in the US.

The promotion of prescription drugs directly to consumers, advertisers' ability to pinpoint would-be customers directly via the internet and the marketing of food and drink to children are all likely to come under scrutiny from the incoming administration.

'For the past eight years, we've had a Bush administration that's been reluctant to legislate when it comes to business,' Dick O'Brien, the executive vice-president of the American Association of Advertising Agencies, said. 'With Obama, we'll see change of seismic …