Keith Nolan always wanted to join the United States military. The challenge: he is Deaf, which is an automatic disqualification according to military rules. In this talk, he describes his fight to fight for his country. (In American Sign...

In most countries, compulsory national service is a thing of the past. However, some countries maintain the policy and others are even bringing it back? So what are the advantages and disadvantages of national service, and should it make...