Below is the latest from Wikipedia:
[During his 2008 Presidential campaign, Barack Obama described Guantanamo as a "sad chapter in American history" and promised to close down the prison in 2009. After being elected, President Obama reiterated his campaign promise on 60 Minutes and the ABC program "This Week." On 12 January 2009, the Associated Press reported that Obama plans to issue an executive order during his first week as president to close the detention center, although the closure may not be complete within his first 100 days as president. The fate of the remaining inmates would then be determined.
On 20 January 2009, President Obama stated that in fact he would sign the documents to close Guantanamo Bay, and as of midnight on 21 January 2009, he ordered the government to suspend prosecutions of Gitmo detainees for 120 days in order to review all the detainees cases to determine whether and how each detainee should be prosecuted.
A day later, President Obama signed an Executive Order stating that Gitmo would in fact be closed within a year.
Why the US has control over a "territory" of Cuba? Below is from Wikipedia:
[The United States assumed territorial control over Guantánamo Bay under the 1903 Cuban-American Treaty, which granted the United States a perpetual lease of the area. The current Cuban government considers the U.S. presence in Guantánamo to be illegal and the Cuban-American Treaty to have been procured by the threat of force in violation of international law.]
In fact I put up the question in "Yahoo Answers" some time ago. One of the answers I received is quite interesting:
The current Cuban government considers the lease illegal but international law does not appear to support that position or at least provides no remedy for the Cuban position.
The current Cuban government refuses to cash the checks of approximately $4000 that the US pays each year."
You can read the rest of the answers by clicking the "green box" link on the right side bar of this blog.