A new study in the journal Archives of General Psychiatry suggests that about 0.5% of children who were exposed to a traumatic event developed Post-Traumatic Stress Disorder later in life. While the study (like all studies) has its limitations, it suggests that the common notion that childhood trauma inevitably leads to adult PTSD may be in error. The Supreme Court has repeatedly held that childhood abuse must be weighed during sentencing phases of capital cases, presumably, under the notion that such abuse may affect culpability during adulthood.