Attorneys for Lavabit an encrypted email service provider that shut down last month have asked a federal appeals court to unseal some details from their case that are currently being kept confidential. The company shut down last month after the government got involved in its business. According to reports, whistleblower Edward Snowden used the service. Lavabit owner Ladar Levison hinted that his platform was under investigation and said that if the public knew what he knew, they wouldn't use email.