Retraction in science. In science, a retraction of a published scientific article indicates that the original article should not have been published and that its data and conclusions should not be used as part of the foundation for future research.
According to the database, Obama has issued 139 executive orders so far. In a comparable amount of time in their presidencies, President George W. Bush signed 160 executive orders, while President Bill Clinton signed 364. By the way, executive orders are numbered consecutively, so you can easily count how many each president signed.
For information on practices in other countries, see Classified information. The United States government classification system is established under Executive Order 13526, the latest in a long series of executive orders on the topic. Issued by President Barack Obama in 2009, Executive Order 13526 replaced earlier executive orders on the topic and modified the regulations codified to 32 C.F.R. 2001.