In a bulletin, the FBI noted that the surveillance might relate to a plot to disperse a chemical or biological weapon.
1	In	in	ADP	IN	_	3	case	3:case	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	3	det	3:det	_
3	bulletin	bulletin	NOUN	NN	Number=Sing	7	obl	7:obl:in	SpaceAfter=No
4	,	,	PUNCT	,	_	7	punct	7:punct	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	_
6	FBI	FBI	PROPN	NNP	Number=Sing	7	nsubj	7:nsubj	_
7	noted	note	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
8	that	that	SCONJ	IN	_	12	mark	12:mark	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	_
10	surveillance	surveillance	NOUN	NN	Number=Sing	12	nsubj	12:nsubj	_
11	might	might	AUX	MD	VerbForm=Fin	12	aux	12:aux	_
12	relate	relate	VERB	VB	VerbForm=Inf	7	ccomp	7:ccomp	_
13	to	to	ADP	IN	_	15	case	15:case	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	15:det	_
15	plot	plot	NOUN	NN	Number=Sing	12	obl	12:obl:to	_
16	to	to	PART	TO	_	17	mark	17:mark	_
17	disperse	disperse	VERB	VB	VerbForm=Inf	15	acl	15:acl:to	_
18	a	a	DET	DT	Definite=Ind|PronType=Art	22	det	22:det	_
19	chemical	chemical	ADJ	JJ	Degree=Pos	22	amod	22:amod	_
20	or	or	CCONJ	CC	_	21	cc	21:cc	_
21	biological	biological	ADJ	JJ	Degree=Pos	19	conj	19:conj:or|22:amod	_
22	weapon	weapon	NOUN	NN	Number=Sing	17	obj	17:obj	SpaceAfter=No
23	.	.	PUNCT	.	_	7	punct	7:punct	_
