Early this morning, members of a federal task force arrested Alpha Onuoha, a screener with the Transportation Security Administration who quit his position.

According to Federal Bureau of Investigation spokeswoman Laura Einmiller, Onuoha had been suspended recently, but suddenly resigned his position Tuesday afternoon and allegedly left a "suspicious package" for another screener at TSA's LAX Headquarters.

The LAPD bomb squad was called in to defuse the package, but found no traces of explosives or other harmful substances. It is believed, however, to have contained an eight-page letter in which Onuoha allegedly discusses the incident -- which Einmiller refused to discuss -- that led to his suspension, as well as his general feelings of disdain for the United States.

Later in the day, authorities at LAX received two phone calls which the task force alleges were from Onuoha. In the first, an employee was told to "begin evacuating certain terminals at the airport," according to Einmiller. In the second, he allegedly told the same employee that he would be "watching" to be sure his instructions were carried out.

Police cleared the terminals.

Authorities, however, were already on their way to Onuoha's apartment, where they allegedly found a note that contained "an unspecified threat citing 9/11/13 anniversary."

For the moment, Onuoha is being held on suspicion of making threats, but more charges may be forthcoming.

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