97607(2003) Internet Surveillance Law After the Usa Patriot Act packet will start with the packet header, which is needed to deliver the packet to the recipients server, and then will contain a payload that consists of both the mail header and then the beginning of the email's contents. The second packet then starts with its own packet header, followed by a payload that con- sists of the next portion of the emails contents. The third packet comes last. and consists of a packet header and then the last portion of the email. When the email arrives at its destination, the server will shed the packet headers and reassemble the email into the mail header and the contents of the email The following table summarizes the envelope and content information for the four types of communications network surveillance TABLE 1: ENVELOPE AND CONTENT INFORMATION FOR POSTAL MAIL TELEPHONE CALLS. EMAILS AND INTERNET PACKETS SURVEILLANCE ENVELOPE CoNTENT TYPE INFORMATION INFORMATION Postal maill D)To, from mailing The contents of the letter 3)Color, size, weight of pa package Telephone )To, from telephone The contents of the numbers for a call ) To, from email The contents of the ress for 2)Mail header info (length of email digital postmarks) minus the subject line Internet Packets 1)To, from IP Payload of the packet (the contents of a 2)Remaining packet communication between header information two computers) (length of packet type of traffic) Notably, each packet includes its own number, so that the different packets can arrive at different times to their destination and the computer at the destination will be able to reassemble them into the original communication. See GRALLA, supra note 24, at 13 61597:607 (2003) Internet Surveillance Law After the USA Patriot Act 615 packet will start with the packet header, which is needed to deliver the packet to the recipient’s server, and then will contain a payload that consists of both the mail header and then the beginning of the email’s contents. The second packet then starts with its own packet header, followed by a payload that con￾sists of the next portion of the email’s contents. The third packet comes last, and consists of a packet header and then the last portion of the email.34 When the email arrives at its destination, the server will shed the packet headers and reassemble the email into the mail header and the contents of the email. The following table summarizes the envelope and content information for the four types of communications network surveillance: TABLE 1: ENVELOPE AND CONTENT INFORMATION FOR POSTAL MAIL, TELEPHONE CALLS, EMAILS, AND INTERNET PACKETS 34 Notably, each packet includes its own number, so that the different packets can arrive at different times to their destination and the computer at the destination will be able to reassemble them into the original communication. See GRALLA, supra note 24, at 13. SURVEILLANCE TYPE ENVELOPE INFORMATION CONTENT INFORMATION Postal Mail 1) To, from mailing address of a letter 2) Postmark, stamp 3) Color, size, weight of package The contents of the letter Telephone 1) To, from telephone numbers for a call The contents of the telephone Email 1) To, from email address for an email 2) Mail header info (length of email, digital postmarks) minus the subject line The contents of the email, including the subject line Internet Packets 1) To, from IP addresses 2) Remaining packet header information (length of packet, type of traffic) Payload of the packet (the contents of any communication between two computers)