Сутягин получил вид на жительство.

Concealment

If you concealed facts or lied about important matters at the time you were interviewed by the USCIS on your application for naturalization, then your US citizenship may be revoked. Some examples include intentionally not listing a criminal conviction, giving a false name or lying about the period of time you've been in the US on your application.
Refusing to Testify

Your US citizenship can be cancelled if you refuse to testify before a committee formed by the US Congress to investigate your participation in subversive activities. Your refusal to testify, however, has to be within 10 years after the USCIS granted your application for naturalization.

What's a "subversive activity?" It can be many things, but for revocation purposes it generally means doing or teaching others how to do some act that's designed to:

Overthrow the US government, especially through violence and force

Harm or injure US government officials

Membership in Subversive Organizations

Membership in a subversive organization or group within five years after you became a naturalized citizen could lead to revocation of your citizenship. The Communist Party and terrorist groups are the classic examples of "subversive" organizations.
Military Service and Discharge

It's possible to become a naturalized citizen based upon your service in the US armed forces. If, however, you are dishonorably discharged before you've served five years honorably, your citizenship may be cancelled. For example, immigrant A enlisted in the US Army in 2005 and was sent to a combat unit in Iraq. In 2007 she applied for and was granted naturalization based upon her honorable military service. In 2008, she was dishonorably discharged. Because A didn't have five years of honorable service before her dishonorable discharge, her US citizenship may be revoked.