Which of the following is true about suspicious activity reporting (SAR) in the United States?

		SAR filings have fallen in recent years.
		There are statistics on the number of SAR filings, and much is known about how much of what appears to be suspicious are in fact violations of federal statutes.
		Quick response to SARs was how Bernard Madoff was caught in the early days of his embezzlement.
		So much of SAR is mandated by federal legislation such as the Annunzio-Wylie Anti-Money Laundering Act of 1992, the Bank Secrecy Act of 1996, and the Patriot Act of 2001.