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Truth be told, we're a little unclear on the details of the arrangements the court has established for the care of Sean Preston and Other One Spears-Federline during their parents' ongoing custody dispute; as far as we can tell, they're primarily under K-Fed's care, with Spears' visitation rights now temporarily curtailed to a single, heavily supervised visit a week, in which the children and their favorite toys are placed inside a protective plastic bubble while a court-ordered monitor observes every interaction between troubled mother and offspring through that impermeable membrane. Whatever the specifics, today brings news that Spears' parenting time could soon take another hit pending an investigation into "multiple child abuse and neglect" allegations by the L.A. County Department Of Broken Pop Star/Background Dancer Family Services:

In a request to unseal parts of the case file, an attorney for the Los Angeles County Department of Children and Family Services wrote that there are concerns about the safety and welfare of the two toddlers, Sean Preston, 2, and Jayden James, 1, if they are left in their mother's care.

Though the agency mentioned investigating referrals relating to Federline, the documents don't provide details. [...]

The latest tidbits on the custody battle are in 300 pages of documents released by Los Angeles Superior Court Commissioner Scott M. Gordon.

The document dump included previous court rulings, expense reports and income statements for both parents, the names of the custody evaluators selected by Spears' and Federline's attorneys and their detailed resumes.

Spears had asked the court to seal the custody and visitation schedules in a declaration filed in October, arguing that "such information greatly increases the chances that the actions of the media could threaten the safety of the children by, for example, causing a traffic accident."

That Spears' attorney has requested the sealing of her schedule amidst fears that the tabloid media will hound her to an even greater degree smacks of legal posturing; any potential increased danger of low-speed accidents—with her car constantly surrounded by a throng of paparazzi, it's difficult to achieve a velocity that could inflict serious damage on anything sturdier than a tube sock—would be more than offset by the benefit of having a few dozen extra freelance child-care helpers with her at all times, who'd always be willing to let the harried mom know she'd left her car-seated kids on the roof of her Mercedes (sigh, again) before allowing her to drive slowly away from the Target parking lot.