Section 702 violates the 4th Amendment by allowing warrantless spying on Americans. It's alleged that Federal Intelligence Agencies used section 702 to spy on Trump, the Trump campaign and thousands of Americans. According to whistleblower Dennis Montgomery, 20 million Americans have been spied on to gain access to bank accounts, phone conversations and emails.
Section 702 is due to expire this December. But it looks like Congress is ready to reauthorize unconstitutional spying on Americans.
http://thehill.com/opinion/cybersecurity/361875-congress-poised-to-jam-through-reauthorization-of-mass-surveillance