In her award-winning book "H Is for Hawk," Helen Macdonald tells the story of training a vicious predator after her father's death.
After the attacks on the World Trade Center and the Pentagon, the U.S. launched a “war on terror.” U.S. troops entered Afghanistan, then Iraq. These wars still continue.
A team of academics from around the country joined Brown University’s Watson Institute for International Studies to tally the cost of these wars. They estimate: $2.5 trillion as of today, but that figure could climb to nearly $4 trillion. The group also calculated the human and social costs, both in lives lost and the cost of caring for the nearly 100,000 wounded service members.