1 The majority of thyroid nodules are benign. 2  Thyroid nodules are more likely to be cancerous at the extremes of age and in males. 3  The most malignant thyroid cancers are seen at the extremes of age.  Most thyroid cancers are found between ages 20 to 50.
In the U.S. Congress, the parliamentarians of the House and Senate serve as formal, nonpartisan advisers to the Speaker of the House and presiding officer of the Senate respectively.
A United States senator is an elected official serving in the senate, which is part of the United States Congress. Senators are elected for six year terms. They're assigned to serve on committees in which they review proposed laws, called bills. Each committee focuses on a different topic, such as budget, defense, health etc. Once a bill is passed in committee, senators must vote on the bill. If it's passed, the bill becomes law [source: Education].