Mark McClusky says for elite athletes today, pushing boundaries and breaking records is all about "the aggregation of marginal gains."
The deaths of 30 special operations personnel who were in a helicopter that was shot down in Afghanistan Saturday focus a new spotlight on the war there.
Military Analyst Bing West recently told Congress that the type of mission these men were killed on is exactly what he sees going forward in the future.
“Our fundamental national security goal has already been achieved and can be sustained,” West said. “That goal is preventing a terrorist safe haven inside Afghanistan. Today, no such safe haven is possible, due to our special operations raids.”