The Guardian has revealed that at least 33 US cities have used various methods that can mask the true level of lead when conducting tests.
According to court documents, Dupont ran the scheme from 2015 until this month and used various methods to defraud donors.
They used various methods to raise the patient's body temperature to between 103 and 107 degrees Fahrenheit.
Google said Viacom used various methods to cover its tracks when uploading videos to YouTube.
Throughout history, nations have used various methods to protect their secrets, and today terrorists, cybercriminals, human traffickers and others use technology to hide their activities.
"They thought they were far too clever to be caught and used various methods to try to cloak and preserve their anonymity.
Therefore, most companies have used various methods to successfully carry out this difficult and time-consuming evaluation process.
James Comey, the F.B.I. director, said during a news conference on Monday that agents used various methods to investigate Mr. Mateen, including sending an undercover informant who made contact with the suspect, wiretapping his conversations and scrutinizing his personal and financial records.
