The Secret Service is looking to buy sophisticated social media monitoring software that can detect when people are being sarcastic, among other things. The agency is specifically interested in Twitter, according to a spokesperson, who told The Washington Post that tweets would help the agency make better decisions in security emergencies. The sarcasm detector would likely allow the Secret Service to better judge the seriousness of a threat made on Twitter. Its feature requests include the ability to quantify the agencys social media outreach/footprint. It must also be compatible with Internet Explorer 8, the agency notes.