Oklahoma City bombing museum upgrades to connect with patrons who don't remember world of 1995

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A memorial and museum about the Oklahoma City bombing is in the midst of a $7 million upgrade ahead of the 20-year anniversary of the attack in hopes of better portraying to visitors how different the world was at the time.

With the 19th anniversary Saturday of worst act of domestic terrorism on American soil, officials at the Oklahoma City National Memorial & Museum say too many patrons, especially younger ones, don't realize that the days of constant cellphone contact and instant information developed since then.

Now, 14 years since the memorial opened, directors say more information is available about the bombing and subsequent trials and the museum needs to adapt to the way students learn.

The project includes creating interactive displays and new exhibits on the criminal trials.