Are low tar cigarettes safer?

Low tar cigarettes have been shown to be just as dangerous, if not more so, than conventional cigarettes. Smokers tend to modify their behavior to ensure they inhale enough smoke to achieve a satisfactory 'hit' and thus take in more tar by blocking the ventilation holes in the filter. People believe these cigarettes to be less dangerous (and by implication more healthy) but recent press coverage has sought to dispel this myth.