Photographer Tackled by 3 Security Guards at the Smithsonian While Covering Strike March 15, 2014Khai Le “While covering a fast food workers strike at the National Air and Space Museum last week, photographer Kristoffer Tripplaar was forcefully brought down by no less than three security guards when he accidentally bumped into one of them in an attempt to protect his equipment.” — http://petapixel.com/2013/12/11/photographer-tackled-3-security-guards-smithsonian-covering-strike/ Source