More at washingtonpost.com: “As jubilant Democrats nominated Sen. Barack Obama (D-Ill.) for president in a Denver convention hall in late August, the U.S. Secret Service in Washington placed its largest ever order for bulletproof glass.
The service requested about 5 tons of "transparent armor," laminated with four layers of virtually unbreakable plastic to resist chemicals, flames and multiple gunshots. When Obama is sworn in as the nation's 44th president Tuesday, the ballistic shield will provide a final layer of safety in a massive exercise in presidential security, the culmination of two years of a steady ratcheting up of the protection around Obama to a level unseen for any of his predecessors.”