LOUISVILLE, Ky. (Reuters) - Democratic presidential candidate John Kerry (news - web sites) warned on Tuesday that health-care costs were crippling small businesses and criticized President Bush (news - web sites) for taking campaign money from companies picked to administer new prescription drug cards for seniors. Despite the uproar over the abuse of Iraqi prisoners, Kerry stayed focused on delivering his week-long message: that the nation's health system is "badly broken" and that Bush stood by as the cost of care and drugs soared. Kerry said health insurance premiums for small businesses had risen 47 percent in just three years,...