After the bombings at the Boston Marathon, security officials and experts are rethinking strategies of how to secure open-air sporting events.
OTL: Security At Open-Air Events
2016 Olympic Games facing financial cutbacks
New sports proposed for Tokyo Olympics
Rio Olympics Ceremonies costing "10% of London 2012"
Hammer thrower gives up gold for cab ride
The Real Deal: Simone Biles
Olympic athletes will get sick in Rio waters
U.S. junior rowers sick after Rio test event
Melo, Durant talk about 'basketball heaven'
Face to Face: Missy Franklin
Golf officially returning to the Olympics
Craig seeking $5.7M for 'Miracle on Ice' memorabilia
U.S. triathlete on water concerns for Rio Games
Virus levels of Rio Olympic waters equivalent to raw sewage
Test finds Rio Olympics water highly contaminated
Miracle memorabilia for sale at big price
Swimming trio discusses training
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