U.S. Attorney General Pam Bondi toured Alcatraz on Thursday as part of President Trump's directive to revert the popular tourist attraction to a federal penitentiary.

Trump administration officials have toured Alcatraz, the once-notorious prison island in the icy waters of San Francisco Bay that the Trump administration is seeking to re-open for prisoners. Alcatraz - popularly known as "the Rock" - has not been used as a prison for decades. It is now a historic landmark visited by millions of tourists each year.

Federal officials recently visited Alcatraz as part of the president's efforts to reopen the historic site as a prison. How did we get here?