This is like arguing about President Obama and the First Lasy changing the drapes in the Oval Office. They are the current tenants of the White House. If the Republicans have problems with how the Obama's decorate things that belong to the White House, then win the Presidency in 2012 for Mitt Romney.
The President merely looks like he is educating students and others about how the past is connected to the present.
Herbert Hoover | The White House
The Obama administration added this to Herbert Hoover's web page:
"Did you know?
•President Herbert Hoover signed the bill founding the Department of Veterans Affairs July 21, 1930. President Obama is committed to making sure that the VA, the second-largest cabinet department, serves the needs of all veterans and provides a seamless transition from active duty to civilian life, and has directed his Administration to modernize the way health care is delivered and benefits are administered for our nation's veterans. First Lady Michelle Obama and Dr. Jill Biden launched Joining Forces to mobilize all sectors of society to give our service members and their families the opportunities and support they have earned." from above Herbert Hoover page at White House official website.