From Yahoo! News:
The Canadian tourism industry coalition expressed concern that new rules requiring Americans to obtain passports before traveling abroad will significantly reduce northbound travel out of the United States.
“The publicity surrounding the new passport requirements is already having a deterrent effect on cross-border travel,” Randy Williams, president of the Tourism Industry Association of Canada, said on behalf of 20 groups with a stake in cross-border travel.
“Travelers are confused and anxious — and more likely to stay home or choose another destination,” he said in a news release.