Comedian Conan O'Brien performs during a stop of 'The Legally Prohibited From Being Funny on Television Tour' in Vancouver, British Columbia, on April 13. Jonathan Hayward/The Canadian Press/AP
A Conan O'Brien fan wears his newly applied 'badge' to show support of the late night comedian following announcements that O'Brien may be leaving NBC after Leno's 10pm 5 month experiment failed to bring in viewers. Zuma/Newscom/File
In this image taken from video and released by CBS, former 'Tonight Show' host Conan O'Brien talks with '60 Minutes' correspondent Steve Kroft, at O'Brien's Los Angeles home, on April 21. CBS/AP
New Tonight show host Conan O'Brien, keeps everyone laughing, including Pam Giganti (r.) during a visit to Channel 6 in Miramar, Florida. Joe Rimkus Jr./Miami Herald/MCT/Newscom/File
Conan O'Brien and his wife Liza Powell arrive at the 61st annual Primetime Emmy Awards in Los Angeles, California on Sept. 20, 2009. Danny Moloshok/Reuters
Hundreds of people show up in the pouring rain in front of Universal Studios to show their support for Conan O'Brien. Newscom/File
In this 2009 photo, Conan O'Brien makes his debut as the host of NBC's 'The Tonight Show' in Universal City, Calif. Paul Drinkwater/NBC/AFP/Newscom
Ten-year-old Beth Bills from Downers Grove, Ill. stands in front of NBC in Chicago showing her support for Conan O'Brien. Zuma/Newscom/File
Conan O'Brien is seen at the 59th Annual Primetime Emmy Awards. Charles Harris/AdMedia/Newscom/File
Conan is seen in New York prior to his debut as host of 'The Tonight Show.' Zuma/Newscom
A British man who tweeted threats to a member of Parliament over her support for putting Jane Austen on the 10-pound banknote will serve 18 weeks in jail. The judge said his 'campaign of hatred' caused the MP to feel deeply threatened.
ByMichael Holtz, Staff writer
While Jane Austen has become the new face of Britain's £10 note, a British man who tweeted threats to express his outrage over that choice has become a poster child for the seriousness with which the courts are confronting such speech.