Doctors are planning the first clinical trial of ecstasy in the UK, to see whether the drug can be beneficial to the traumatised survivors of child abuse, rape and war. Ecstasy and other illegal drugs such as LSD and magic mushrooms are potentially useful in treating people with serious psychological disturbance who cannot begin to face up to their distress, some psychiatrists and therapists believe. But because of public fear and tabloid anger about illegal drugs, scientists say they find it almost impossible to explore their potential.