Since the Bank Secrecy Act of 1973 requires your bank to microfilm all of your checks and hold these records for six years, the state can get intimate details of your life from a study of your checking account.
The rap against MRIs as a diagnostic tool for low back pain is not that the scans usually reveal nothing, or even that they're expensive, it's that they often show a lot of abnormalities in the back that may have nothing to do with the source of your pain.
A breast MRI usually requires the use of contrast that is injected into a vein in the arm before or during the procedure. The dye may help create clearer images that outline abnormalities more easily. MRI, used with mammography and breast ultrasound, can be a useful diagnostic tool. Recent research has found that MRI can locate some small breast lesions sometimes missed by mammography. It can also help detect breast cancer in women with breast implants and in younger women who tend to have dense breast tissue.