The US FCC has again come down hard on  amateurs for causing interference. For the story go to

http://www.arrl.org/news/fcc-proposes-to-fine-ohio-radio-amateur-for-malicious-interference-failure-to-identify

http://www.radioworld.com/article/lions-tigers-and-ham-oh-my-%E2%80%94-a-k-penalty/276873