[DannyTN]

"Once a perp is arrested, they are advised of their Miranda rights, and anything they say thereafter is eligible for use. They do not have to specifically state that they waive their rights - they can do so by evidence of their actions."

After they are arrested, perps don't waive their fifth amendment rights by speaking except to the extent they speak. Answering one question does not cause a perp to waive their right to refuse subsequent questions.

Waiving miranda rights

[Zeta Beam]

Answering one question does not cause a perp to waive their right to refuse subsequent questions.

Well, obviously not. I can't figure out what the hell is going on with Issa, unless the Democrats have pix of him in a compromising position with a flamingo or something.