What were the chief provisions in theusa patriot act?

Buckle up. This is gonna be a LONG answer. 

The government could eavesdrop on telephone calls and privileged conversations between prisoners and their lawyers. The government could prosecute individual citizens for not supporting the War on Terror.
The government could violate due process laws if a citizen was deemed to be unpatriotic.
The government could require citizens to swear an oath of patriotism if they were deemed a threat to the country.
The government could pass legislation without the sufficient number of votes if it was deemed essential to US safety.