Biggest military computer hack of all time

A British computer hacker Gary McKinnon has broke into the top USA secret military and space agency networks. As per US prosecutor this is deemed as the "biggest military computer hack of all time". He may face jail for 60 years if convicted in American courts/

However, McKinnon told that he hacked into Pentagon and Nasa computers as he wanted some latest evidence of aliens and UFOs.

Do you beleive that USA should punish him, or they should strengthen their secuirty measures?

-CB