Without taking sides here, you have to be careful about recording. Some states have very broad prohibitions against
secret recording - so-called two-party states. Exceptions for public meetings, police, are quite limited. However, if you upfront state you are recording, you can proceed and it is up to the other party to stop talking or leave.
Massachusetts's wiretapping law often referred to is a
"two-party consent" law. More accurately, Massachusetts makes it a crime to
secretly record a conversation, whether the conversation is in-person or taking place by telephone or another medium. See
Mass. Gen. Laws ch. 272, § 99. Accordingly, if you are operating in Massachusetts, you should always inform all parties to a telephone call or conversation that you are recording, unless it is absolutely clear to everyone involved that you are recording (i.e., the recording is not "secret"). Under Massachusetts's wiretapping law, if a party to a conversation is aware that you are recording and does not want to be recorded, it is up to that person to leave the conversation.