They don't call it "interrogation", but honestly, that is what it is. The police will call it "interviewing" or "questioning" or even "assisting" but their goal is to talk to you long enough to generate something that will make you look guilty no matter how innocent you are. Most police operate under the assumption that everyone is guilty, it's just a matter of finding out what they are guilty of. I know this because I seem to be related to half the law enforcement in the state - and being related is not a free pass to avoid the "interview room".
Asking for a lawyer is not an admission of guilt. I know the TV shows try to spin it that way, and for most of us, that's our greatest experience with police, that and possibly a minor fender-bender.
Asking for a lawyer is a savvy thing to do especially for the innocent because the lawyer speaks the language of police. We don't. Not anymore. Police are rarely our neighbors and friends. Even if you have a police officer living right next door, likely he works in a precinct far away and will never respond to calls in your (and his) neighborhood. Most police patrol areas distant from their own neighborhoods, and those SWAT Teams? They may not even be from the same state! It's no wonder that these people are prone to bursting into the wrong home - if they do that, you're the one who's guilty, and you're the one who will be shot, who will have your property damaged, who will have your pets killed - and you will have no recourse. They acted on "good" information and it doesn't matter that the address they were supposed to raid was 1000 NW 46th instead of your home at 100 SW 64th. You will always be the one at fault, and you will always be guilty, and you will have to bear the cost and trauma of their actions.
I doubt Obama will change that as it's still happening. It may be far down his priority list, but it's pretty high on ours. Or mine, anyway. I have a lot to lose should the police raid my house. As a hearing impaired person, I probably won't hear them knock - assuming they knock. I have my 2 hearing assistance dogs: Itzl, my away-dog and Xoco, who stays home and is slightly brain damaged and yappy. I may have visitors, who may be my children, and they may have young children with them. I have a front door that I don't want shattered. That's a lot to worry about living under law enforcement that doesn't care to get the information correct before kicking down doors.
I consider myself law-abiding, but there are thousands of laws, modifications to laws, obsolete laws, and variations of laws that the average person just can't keep up with, especially since they aren't written in any kind of easily accessible fashion. There is no Welcome Wagon that brings you a book containing all the ordinances, laws, and regulations under which you now live. There is no website that provides all the laws you are living under. You can't walk into the courthouse and pick up a copy of the laws that apply to you - you can get some of them, but not all of them. Even Judges and attorneys can't keep abreast of all the laws; they have entire research teams scouring the laws so they can find anything usable and relevant. We don't have research teams searching for the relevant laws for our lives. We have to trust we are law-abiding by being decent human beings. And sometimes, that isn't enough to keep us from becoming the target of law enforcement.
So, if the police (or actually, any type of law enforcement person) wants to "just ask you a few questions", politely tell them you'll be happy to help them, but you want a lawyer there to help you. Play stupid. "I don't know anything useful, I need a lawyer to help me help you."
Do not answer any questions. Plead your 5th. You have the right to remain silent; take it. The police may Miranda you, and if they do, they'll say "Anything you say may be used against you" but what they mean is "Anything you say will be used against you." Their job is to catch "the bad guys" and we're all the bad guys. If they keep us talking long enough, they'll find something they can charge us with, or something they think they can charge us with, which amounts to the same thing
Do not talk to the police.
Talk to your lawyer. If the police want to question you, it's because they believe you did something wrong. Period. End. Of. Story. If you are innocent, especially if you are innocent, demand a lawyer. Answer every question with "I want to see a lawyer." It's boring, it's repetitive, it's dull, and it can save you.
If you're involved in a traffic stop - speeding is the most common one - let the police tell you what you did wrong. They will ask you how fast you were going and your instinct is to be honest and tell them. Don't. Speak politely to them, but don't answer the question. Give them your license, your insurance, your registration if you're in a state that has that. Don't try to talk your way out of the ticket. It may have worked in the past, but it won't work anymore. Police are trained to latch onto anything you say and use it against you. They do not have to Miranda you. Judge after judge has ruled that being read the Miranda warning is not required. Don't expect to get out on the technicality of not being Miranda'd.
If they ask how fast you were going, ask if you can get your insurance and registration out for them. Keep your hands visible at all times except when you tell them what you're doing and why (digging in your pocket for your wallet, your purse, your glove box...). Do not answer them. They will tell you. They have to, in order to write the ticket.
Accept the ticket, thank them, and wait until they leave before you drive off. It may take them a while to drive off because they are writing down everything you said in case you go to court. And they like to follow you a while after you drive off because if they follow you long enough, they can catch you breaking some other law and ticket you again. They will, too. You may go a couple of miles over the limit down a hill or fail to use your blinker one time or not look behind you in the exact right way when changing lanes.
Let the police tell you what they think you did wrong, let them give you the ticket, and let them drive off first, no matter how long it takes them to drive off. Do what they are doing - write down everything the police said, write down the name and badge number, write down a description of where you were pulled over, write down the time of day and weather conditions and traffic density. Doodle pretty pictures. Read a book. Sing songs. Do whatever it takes to pass the time for the police to drive off first.
If the police take you in for questioning or they knock on your door to ask you questions, you are already guilty of something in their eyes. Protect yourself by remaining silent.
Check out this YouTube about Don't Talk to Cops. And check out the sequel, Don't Talk to Cops Part II.
First and only rule of survival with police questioning: Don't talk.