Some of the best #MuckReads we read this week. Want to receive these by email?  Sign up to get this briefing delivered to your inbox every weekend.

Welcome to America – Now Spy on Your Friends, Buzzfeed

How the FBI convinces Muslim immigrants to become informants https://t.co/KWF92Og5U7pic.twitter.com/RhwtYOLut1

— Lauren Walker (@laserlauren) January 29, 2016

The FBI requires agents to warn potential informants, who may be seeking a deal that will speed up the immigration process, that the agency is not able to help their immigration status. This Buzzfeed News investigation finds that not only are agents violating these rules, but they are dangling immigration status over the heads of Muslim immigrants so they will spy on their neighbors.

Epidemic ignored: Oklahoma treats its mental health system without care, The Oklahoman

For decades, Oklahoma has largely ignored its mental health system, despite warnings https://t.co/DYKkLTyTlA#longreads#muckreads

— Jaclyn Cosgrove (@jaclyncosgrove) January 25, 2016

On average, Oklahomans with mental illnesses and substance use disorders will die 35 years early, thanks in large part to a struggling mental health system. This examination of the history of mental health treatment in Oklahoma explains how it got to this point.

Chicago Police Hid Mics, Destroyed Dashcams To Block Audio, Records Show, DNAinfo Chicago

Yikes yikes yikes https://t.co/enAj89rHjypic.twitter.com/XhlBiY4YE1

— Chris McDaniel (@csmcdaniel) January 27, 2016

It's not a coincidence that most police dashcam videos are silent. This DNAinfo Chicago investigation found that Chicago police officers routinely damaged dashcams to prevent audio from recording. That was the case when black teenager Laquan McDonald was shot to death by police.

The Ticket Machine, Buzzfeed

From last night: the cop who pulled over his own mom, his ticketing binge, and what it meant for a Texas city's poor https://t.co/HxYzLl5LYa

— Alex Campbell (@alexcampbell) January 27, 2016

In Texas, the city of Port Arthur has created "a traffic ticket juggernaut." By using surveillance technology designed to catch terrorists, the city is catching and arresting people who have unpaid traffic tickets at staggering rates. The city says its system saves lives, but for its poorer residents, the financial strain is severe.

Feds' failures imperil migrant children, AP

Feds repeatedly lowered protections for migrant kids; sexual abuse followed. Important @AP investigation. https://t.co/y1a5h7TbyY

— Brad Heath (@bradheath) January 26, 2016

Over the last three years, the Department of Health and Human Services changed its rules for moving migrant children into sponsors' homes. Those rule changes have had serious consequences for migrant children, some of whom have been placed in homes where they've been sexually assaulted, abused and forced into labor trafficking.

'This Man Will Almost Certainly Die', The Nation

This is a very powerful piece: Needless Death Inside Our Privatized, Immigrant-Only Prison System via @thenationhttps://t.co/7gUHMtCSsh

— Andrew Cohen (@JustADCohen) January 28, 2016

There are 11 immigrant-only private, low-security prisons in the U.S., and according to this investigation, they are in dire straits. Federal audits routinely find the facilities to be in crisis – but the privatization continues, even as medical neglect is suspected in contributing to the premature deaths of prisoners.