A teenager <A HREF="http://www.cnn.com/2005/TECH/internet/01/28/internet.attack.ap/index.html">was sentenced Friday</A> to 1 1/2 years in prison for unleashing a variant of the "Blaster" Internet worm that crippled 48,000 computers in 2003. Jeffrey Lee Parson, 19, of Hopkins, Minnesota, will serve his time at a low-security prison and must perform 10 months of community service. He had faced up to 10 years in prison, but the judge took pity on the teen, saying his neglectful parents were to blame for the psychological troubles that led to his actions.