Foreign intelligence agents often make approaches to people in power (remember Russian spy, Maria Butina?). The question is, when they learn from the FBI that they are unwittingly being targeted, do they cease all contact? Swalwell did. Can’t say the same about Carter Page & Co. https://twitter.com/politico/status/1337096223484997635

Just to emphasize, Carter Page was warned that he was being targeted by Russian intelligence. So was the Trump campaign. And Senator Ron Johnson. NONE of them cut off contact...they doubled down (and in the case of the Trump campaign, later concealed and lied about it to the FBI)

I’ll add: The FBI typically gives a defensive briefing/warning when they believe you are being UNWITTINGLY targeted. If they think you are knowingly participating, they will quietly monitor you to gather more info (and in some cases open a criminal investigation)

Targets of foreign intelligence can include: scientists and researchers, politicians, businessmen, journalists, diplomats. Being approached means you have access to info they want. (HPSCI: shocker!) Again, what matters is how you respond once the FBI alerts you to the threat.