Given discussions on what Obama might do through Executive Orders to implement his agenda, it is important to understand that historically, Presidents have successfully used EOs in completely unlimited ways.
Example 1: Executive Order 6102 is an Executive Order signed on April 5, 1933, by U.S. President Franklin D. Roosevelt "forbidding the Hoarding of Gold Coin, Gold Bullion, and Gold Certificates within the continental United States". The order criminalized the possession of monetary gold by any individual, partnership, association or corporation.
http://en.wikipedia.org/wiki/Executive_Order_6102
Example 2: President Franklin D. Roosevelt authorized the internment [of American citizens of Japanese descent] with Executive Order 9066, issued February 19, 1942, which allowed local military commanders to designate "military areas" as "exclusion zones," from which "any or all persons may be excluded." This power was used to declare that all people of Japanese ancestry were excluded from the entire Pacific coast, including all of California and much of Oregon, Washington and Arizona, except for those in internment camps.[8] In 1944, the Supreme Court upheld the constitutionality of the exclusion orders,[9] while noting that the provisions that singled out people of Japanese ancestry were a separate issue outside the scope of the proceedings.[10] The United States Census Bureau assisted the internment efforts by providing confidential neighborhood information on Japanese Americans. The Bureau's role was denied for decades, but was finally proven in 2007.[11][12]
http://en.wikipedia.org/wiki/Japanese_American_internment
Conclusion: There is no historical restraint on the scope and use of Executive Orders.
Example 1: Executive Order 6102 is an Executive Order signed on April 5, 1933, by U.S. President Franklin D. Roosevelt "forbidding the Hoarding of Gold Coin, Gold Bullion, and Gold Certificates within the continental United States". The order criminalized the possession of monetary gold by any individual, partnership, association or corporation.
http://en.wikipedia.org/wiki/Executive_Order_6102
Example 2: President Franklin D. Roosevelt authorized the internment [of American citizens of Japanese descent] with Executive Order 9066, issued February 19, 1942, which allowed local military commanders to designate "military areas" as "exclusion zones," from which "any or all persons may be excluded." This power was used to declare that all people of Japanese ancestry were excluded from the entire Pacific coast, including all of California and much of Oregon, Washington and Arizona, except for those in internment camps.[8] In 1944, the Supreme Court upheld the constitutionality of the exclusion orders,[9] while noting that the provisions that singled out people of Japanese ancestry were a separate issue outside the scope of the proceedings.[10] The United States Census Bureau assisted the internment efforts by providing confidential neighborhood information on Japanese Americans. The Bureau's role was denied for decades, but was finally proven in 2007.[11][12]
http://en.wikipedia.org/wiki/Japanese_American_internment
Conclusion: There is no historical restraint on the scope and use of Executive Orders.